Can sombody please answer this.​

Which of the binomials below is a factor of this trinominal? x^2-13+30

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

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?