The ideal speed of an elevator is 120 feet/minute. But the elevator's speed is allowed to vary by less than a certain amount. Identify the graph of the variance levels that indicate unacceptable elevator speeds.

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose