Question

Can someone please explain this to me please?
Will give brainly if you actually answer the question

Answer 1

Answer:

Explanation:

18)  y = $9000(1.0525)⁵ = $11,623.93

19) let z = -2n - 1

     |z| = 7

      z = ± 7

7 = -2n - 1

8 = -2n

n = - 4

-7 = -2n - 1

-6 = -2n

 n = 3

C n = - 4 or n = 3