When the code is executed it will produce a type error with the variable string in line 9. The variable string is trying to concatenate a string and an integer from the z array. To make the code executable, we would need to make the integer from the z array a string. We would do this by simply wrapping it in the method str(), which converts it into a string. After making the change, the following code will execute correctly.

1: x=\[\]

2: y=\[\]

3: z=\[\]

4: for i in range(10):

5: x.append(i)

6: y.append(x\[i\]+2*x\[i\])

7: z.append(x\[i\]+y\[i\]**2)

8: print(z)

9: string="The fourth element of z is"+str(z\[3\])

10: print(string)

When the code is executed it will produce a type error with the variable string in line 9. The variable string is trying to concatenate a string and an integer from the z array. To make the code executable, we would need to make the integer from the z array a string. We would do this by simply wrapping it in the method str(), which converts it into a string. After making the change, the following code will execute correctly.

1: x=\[\]

2: y=\[\]

3: z=\[\]

4: for i in range(10):

5: x.append(i)

6: y.append(x\[i\]+2*x\[i\])

7: z.append(x\[i\]+y\[i\]**2)

8: print(z)

9: string="The fourth element of z is"+str(z\[3\])

10: print(string)

When the code is executed it will produce a type error with the variable string in line 9. The variable string is trying to concatenate a string and an integer from the z array. To make the code executable, we would need to make the integer from the z array a string. We would do this by simply wrapping it in the method str(), which converts it into a string. After making the change, the following code will execute correctly.

1: x=\[\]

2: y=\[\]

3: z=\[\]

4: for i in range(10):

5: x.append(i)

6: y.append(x\[i\]+2*x\[i\])

7: z.append(x\[i\]+y\[i\]**2)

8: print(z)

9: string="The fourth element of z is"+str(z\[3\])

10: print(string)

In Swift, all methods must first say what they are. They are functions, so they are prefixed with func. Next, methods must have a name. In this case, we named it method. All methods need to specify parameters, even if there are no parameters. So, method() i.e. no parameters. Finally, we wanted to return a Double. So we set the return type using -> Double.

The easiest way to work through this code is to comment on its parts. See the comments below in bold.

double a = 4.5, d = 4;

int b = 10,c=5;

/*

a / b: This is a division that will maintain the decimal portion (since it has a double involved in it). 4.5 / 10 will evaluate to 0.45.

c / d: Since this has both an int and a double, it will evaluate to a double. That means that it will maintain its decimal portion as well. It is: 5 / 4 or 1.25.

d % c: Since d is 4, this kind of remainder division works just like having two integers for the modulus. 4 % 5 is just 4. (It is 0 remainder 4.)

Thus, the expression is: 0.45 + 1.25 - 4, which is -2.3.

*/

double e = a / b + c / d - d % c;

The easiest way to work through this code is to comment on its parts. See the comments below in bold.

double a = 4.5, d = 4;

int b = 10,c=5;

/*

a / b: This is a division that will maintain the decimal portion (since it has a double involved in it). 4.5 / 10 will evaluate to 0.45.

c / d: Since this has both an int and a double, it will evaluate to a double. That means that it will maintain its decimal portion as well. It is: 5 / 4 or 1.25.

d % c: Since d is 4, this kind of remainder division works just like having two integers for the modulus. 4 % 5 is just 4. (It is 0 remainder 4.)

Thus, the expression is: 0.45 + 1.25 - 4, which is -2.3.

*/

double e = a / b + c / d - d % c;

In Swift, all methods must first say what they are. They are functions, so they are prefixed with func. Next, methods must have a name. In this case, we named it method. All methods need to specify parameters, even if there are no parameters. So, method() i.e. no parameters. Finally, we wanted to return a Double. So we set the return type using -> Double.

The easiest way to work through this code is to comment on its parts. See the comments below in bold.

double a = 4.5, d = 4;

int b = 10,c=5;

/*

a / b: This is a division that will maintain the decimal portion (since it has a double involved in it). 4.5 / 10 will evaluate to 0.45.

c / d: Since this has both an int and a double, it will evaluate to a double. That means that it will maintain its decimal portion as well. It is: 5 / 4 or 1.25.

d % c: Since d is 4, this kind of remainder division works just like having two integers for the modulus. 4 % 5 is just 4. (It is 0 remainder 4.)

Thus, the expression is: 0.45 + 1.25 - 4, which is -2.3.

*/

double e = a / b + c / d - d % c;

In Swift, all methods must first say what they are. They are functions, so they are prefixed with func. Next, methods must have a name. In this case, we named it method. All methods need to specify parameters, even if there are no parameters. So, method() i.e. no parameters. Finally, we wanted to return a Double. So we set the return type using -> Double.

Breanna should use int because she would be counting whole numbers.

Nathan however, should use double because he will be adding up how many grapes he eats and divide by the number of days in the week.