Which is other endpoint of line segment with one endpoint at (1,3) and midpoint (3,5)

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

What is the range for 31,39,29,34,37,24,36,33,34,28

Which statements regarding efg are true? check all that apply.