The annual median income for a senior accounting clerk is $42,294. The annual median income for a senior accountant is $64,473. How much more can a senior accountant earn than a senior accounting clerk over 30 years?

Dbc if u do the math and stuff that what i got let me know if i was wrong

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.