Find the coordinates of the point c, if the point b(1/2,6) divides the line segment joining the points a(3,5) and the c in the ratio 1: 3

Which ratio is equivalent to 10: 85

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.

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .