Marina volunteers at the salvation army. she has been tasked with buying non-perishable items for families that were displaced by a recent flood. she finds a company willing to sell her cans of food at a discounted price. in the system below x represents the number of small cans she purchased and y represents the number of large cans she purchased.
2.25x+4.75y=714.75
x+y=181

part c: how many small cans did marina purchase
part d: how many large cans did marina purchase