We have to use proofs​

You download a video game to your computer. you have a 60-minute free trial of the game. it takes 5 1/6 minutes to set up the game 7 1/3 minutes to play each level. you want to find out how many levels you can play for free. which inequality describes the number of levels, l, you can play in 60 minutes? can you play 6 levels during your free trial? i need ,

Describe the domain and range of y=2(3)^x-2+5

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