Iwant to run less than 7/12 of a mile which of the following distance is less than 7/12 of a mile? 3/4 2/3 5/6 2/4

What is the range of this function? all real numbers such that y ≤ 40 all real numbers such that y ≥ 0 all real numbers such that 0 ≤ y ≤ 40 all real numbers such that 37.75 ≤ y ≤ 40

Witch represents the inverse of the function f(x)=1/4x-12

Hi, can anyone show me how to do this problem? 100 points for this. in advance