Work out the volume of this prism with 6 8 4 9

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

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5

What is the solution of |2x-5|< 21