Can u show me a graph for the solution of |x| + 1 < 3

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

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?