Please show work. Can someone help me out

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

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.