Please help really neeed it

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

52 cm radius = diameter = area = circumference = circumfer

Acompany that makes? hair-care products had 5000 people try a new shampoo. of the 5000 ? people, 35 had a mild allergic reaction. what percent of the people had a mild allergic? reaction?