Please help!!

3x+2
- =13
2

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

What is the average rate of change for this function for the interval from x=2 to x=4 ?

How can you tell when x and y are not directly proportional?