Can someone please help me with this question

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4