The owner of a sporting goods store buys pairs of rollerblades for $60 and marks them up 25%. several months later he decides to clear his inventory and sells each pair of rollerblades at a descount of 20%. what is the total price of a pair of these rollerblades with the discount and a 6% sale tax?

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.