Explain two different squares using the number 9?

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

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

Asap! i'm not good math and i'm lost.