Find the measure of this angle?
i'm stuck

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

Which of the following is true for the relation f(x)=2x^2+1

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?