f^-1(x)=(x-3)/4 is the inverse function f(x)=y=>y=4x+3 because f(x) is another way of writing y
Let sum of 3 numbers be x.
Average of 3 numbers and 8 =

25 =

100 = x +8
x= 92.
The sum of 3 numbers is 92.
She has -80 because 4 withdrawalsof 50 is 200 subtract the that from 120 its -80
Answer:
Step-by-step explanation:
Fractions