Use the order of operations to simplify the expression. 5 + 21 ÷ 7 x 2 - 3

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

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

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy