The equation R = 10 A – 40 represents the revenue R(in dollars) you make by spending Adollars on advertising. Your revenue totaled $200. How much did you spend on advertising?

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

2 2/3 hours duhh silly

step-by-step explanation:

step-by-step explanation:

659