Respuesta :
Write a equation system: 17x+18y=61.5
10x+21y=57
Where x is cost per each pencil purchased and y is cost of each pen purchased. So you have to solve this system and get x=1.5 and y=2
10x+21y=57
Where x is cost per each pencil purchased and y is cost of each pen purchased. So you have to solve this system and get x=1.5 and y=2