The fun house allows 35 people in at a time but there is cure tally 110 ppl in line how many groups get to go in before every body else in line gets to go in

35×3=105 with 5 left over

So it would be 4 group

3 groups of 35 and 1 group of 5

So it would be 4 groups

Step-by-step explanation:

Inverses are easy for this problem. First we start with the equation. Then we change the f(x) to y to make this whole problem easier. 
y=2x+1
Isolate the x and solve for x. 
x=(y-1/2)
Switch x and y again. 
y=(x-1/2)
Add function notation.
f^-1(x)=(x-1/2)
Done! And if you need to check if equations are inverses, add the original equation into the x variable of the inverse. The solution should be f^-1(x)=x. That means the inverse is right.