Any help? ~|~~~

:)

C

Step-by-step explanation:

the -2 replaces the -2

f(-2) = 5 x 3^-2

So when you solve it you get 0.555555556

5 divided by 9 is 0.555555556

so it’s the third one

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

45

step-by-step explanation: