Carl went out to eat with his family for his birthday. The bill was $87.42, but Carl had a 10% off coupon. If Carl gave a 20% tip, what was the final price he paid for the meal? (I mainly just need to know whether the tip was before or after he used the coupon)

Find the difference (8ab+a+2) - (3ab+6)

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.

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)