Which graph goes with which equation?

What is the equation of the graph below? y=sec(x)-4

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

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles