What are all the factors and multiples of 13

This is different from the first one can someone me

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.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .