Question

If Quick copy recently charged 49 cents per page for color copies and 9 cents per page for back and white copies. If Shirlees bill for 90 copies is $12.90, how many copies of each type were made? It needs to be written like in algebra let x= or x+y something like that thanks

Answer 1

is that the full question or does it say like a certain percent of $12.90 was color or?