Jillian is participating in a book-reading contest to raise funds for her local library. for every book jillian reads, her mother pledged to make a donation.
a: the table shows how much jillian's mother will donate. find the pattern, and give the amount her mother will donate for 9 and 21 books read.
(btw it won't let me upload a pic of the table so this is what it said)

br: 3. 5. 7
md: $15. $25. $35

(ps. br means books read and md means money donated)

b: write an equation showing the pattern from the table. identify the variables.

c: graph the equation.