David opens a savings account with a 7.5% annual interest rate. Which choice best represents his monthly interest rate? A. 6.25%
B. 6.04%
C. 0.625%
D. 0.604%

It is a percent with money involved too divide and you should have your answer

That. you would have multiple

Idon’t understand what you’re asking..

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.