Theresa and Isaiah are comparing the number of pages that they read for Summer Reading. Theresa read 2,205 pages, which was 75% of the number of pages that Isaiah read. How many pages did Isaiah read?
100-75= 25 so 25% is what Isaiah read then u find 2,205 of 25% (OF means multiply easier way 2,205*0.25= 551.25 but rounded it would be 552 so Isaiah read 552 pages
