Can someone answer all of these due at 11: 59 and i’ll give you a brainliest if right

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

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

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples