Help me find the measure of 4! And please explain how u did it, ill make brainliest the first to answer with an explanation ! Thank you

Sasha invests $1000 that earns 8% interest compounded annually. write a function that describes the value, v, of the investment after t years.

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

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?