A. What are the x-intercepts of this function's graph?

b. What are the y-intercepts of
this function's graph?

C. Over what intervals is this
function increasing?

d. Over what interval is this
function decreasing?

I feel like the answer is 

10h = 110 

although it's so simple that I'm not even sure it would be considered an equation. 

I got the answer because she works, in total, 10 hours a week. She makes $130 a week, but since $20 comes from the dog walking, you have to do 130 minus 20 which is 110. That's what I did anyway.