Genetics Question of the Day

Consider an alien species that shows simple dominant-recessive inheritance of ear shape, in which rounded ears are dominant and pointed ears are recessive. These species meets the requirements for a Hardy-Weinberg equilibrium, and of all the alleles for ear shape present in the population, 75% are dominant and 25% are recessive.

If there are 4000 individuals in the population, how many would you expect to have rounded ears?