Answer:
-22
Step-by-step explanation:
f(x) = 5x -7
substitute x = -3 into the equation as follows:
f(-3) = 5( -3) -7
= -15-7
= -22
Y=2.5 if your solving for y
Decrease = New number - Original Number
% Decrease =

× 100
Decrease = 9 - 12 = -3
% Decrease =

= -0.25 × 100 = -25
Your answer =
-25
Answer:
Average height = 64.2 inches
Step-by-step explanation:

