What is the solution to the system of equations
a. (-4,2)
b. (-1,3)
c. (0,2)
d. (2, 4)​

38 dollars is your answer.

The percent increase is 25%

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.