Kia's math test scores are shown. in order to join the math club she must have at least an 80 test score. what is the minimum score that she must make on her next test to have an average of 80?

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.

How many shares did he have to begin with?