Work out the area of this circle

hep the ratio of the weight of shawn's dog to the weight of andy's dog is 5: 7 shawn's cat weight 23kg approimately how much does andy's dog weigh

Based on what i know about mean, this doesn't add up.

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.