In a certain Algebra 2 class of 30 students, 8 of them play basketball and 10 of them play baseball. There are 18
students who play neither sport. What is the probability that
a student chosen randomly from the class plays both
basketball and baseball?

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.

Ican't read this very blury

Is a for each hour he works,his earnings go up by $4

2+1=3 that’s your answer