Jimmy charges a flat amount of $10.00 plus $2.50 per hour to cut his neighbor's grass. It takes Jimmy 3 hours to cut his neighbor's grass.

If Jimmy's neighbor pays him for cutting his grass with a $20.00 bill, then how much change does Jimmy need to give his neighbor back?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

The volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of its original volume

Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16