How do you find the x of the two equations?

John can eat 10 cookies in 1/2 hr how many cookies can he eat in 45 minutes make a proportion and solve

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5