Someone help me please.

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

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319