Sarah runs a day camp in the summer and needs to buy paper towels and soap for the restrooms. she spends $129 on t cases of paper towels and s cases of soap. each case of paper towels is $12 and contains 10 rolls of paper towels. each case of soap is $15 and contains 12 bottles of soap. sarah buys 10 cases of supplies altogether.

part a- write a system of two equations to represent the cases of supplies sarah buys. explain your work.

part b. how many cases of paper towels did sarah buy? show or explain your work.

part c- explain why it would not be possible for sarah to buy exactly 20 bottles of soap.

answer all parts and show work

you