Percy collects baseball cards and has been saving his money to buy some new ones. He finds 13 cards online that each cost the same amount of moneyplus a one-time $8 shipping fee . Percy starts with $286 , and after he places his order, he has $182.06 left over. How much did each card cost

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

Tha answers are c. 2 and d. 7.5 ; )