Urgent needed w/ right triangle trig

Since this is a right triangle, you can use the main trig functions sin, cos, and tan. We must use sin for this problem because sin= opp/hyp. Plug in the numbers to this function. Sin (53) = a/25. Thus when you cross multiply, you get a= sin (53) x 25. When you plug it into a calculator the answer should come out to 19.97

Step-by-step explanation:

G(r) = 5(r-4), when g(o)

= 5(0-4) = -20