Can’t see the full graph! But you can see there’s a small portion of the graph showing at the bottom which seems to be continuing making the range start from negative infinity. So, it has to be either the first or last option. You can check where the least and greatest x values that are graphed are to determine your domain
So, she can type 12 pages in 1 hour, how many would she type in 9 hours then? let's check,

so in 9 hours, she has that typed that many pages, how many pages remain from the 152? well 152 - p.
#17....... part A is 40xn=360 and n=9
part B is...I got this answer because 40xn=360 so its the same as 360/40 which equals 9
A. 4x+10
B. 9x+3
These are the answers to the questions. You just add the like terms together and BAM! You're answer. Hope this helps (: