Dante wants to read a 425-page book in 3 days. He reads 178 pages on Monday and 146 pages on Tuesday. He wants to determine how many pages, p, he will have to read on Wednesday.
first, you need to add the number of pages read on monday and the number of pages read on tuesday, and get 324. then, you subtract the number of pages read from the amount of pages there are, and get 101.