A graduated commission employee makes 3.5% interest on the first $50,000 in sales and 6.5% interest on all sales over $50,000. Which of the following expressions represents the employee’s total earnings on $81,500 in sales? a.
(0.035)(50,000) + (0.065)(81,500)
b.
(0.035)(50,000) + (0.065)(31,500)
c.
(0.35)(50,000) + (0.65)(31,500)
d.
(3.5)(50,000) + (6.5)(31,500)

For me i think it'll land on blue

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.