emperature Suppose there is a 1.3°F drop in temperature for every thousand feet that an airplane climbs into the sky. If the temperature on the ground is 62.5°F, what will be the temperature when the plane reaches an altitude of 6,000 ft?

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

How to do this , and can some one explain

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way