Answer:
-9.2 + 4.4 = -4.8
-81.4 + (-12) = -93.4.
Firstly
f(x)=3x-2=y then
Interchanging x and y we get
x=3y-2
x+2=3y
y=(x+2)/3
f-1(x)=(x+2)/3
f-1(13)=(13+2)/3
f-1(13)=5
$1.33
Step-by-step explanation:
D
