50/8 converted as a mixed number

Ineed i do not understand i'm only 8

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?