Rewrite y=0.9^(t + 2) in the form y=a(1+r)^t or y=a(1−r)^t. Then tell whether the model represents exponential growth or exponential decay.

Find the difference in area between the circle and the triangle. click on the answer until the correct answer is showing.possible answers: a = 4 pi - 8a = 9 pi - 9/2 √3a = 16/3 pia = 16a = 27 pi