(look at pic) find an equation linking x and y. can i get some help plsss??

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

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Need solving this 2nd limit problem.