Which model represents this word problem? Pablo read 7 pages of his book. There are 13 pages left. How many total pages are in his book?

HELPP IM TRYING TO HELP MY FRIEND !! :(
i think its the first one but im scared to hit it

Triangle jkl was dilated using the rule dm, 1/3 the image, triangle j’ k’ l’ is the result of the dilation. a.5 units b.7.5 units c.10 units d.12.5 units

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits