$2,300 earn $60 interest in 6 months. Find the interest rate. PLEASE HELP ME WITH THIS ANSWER

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

Question 5 spring semester final exam math evaluate

What is the value of x when x + 7 = 21?