Jack's average in math for the first nine week was an 88. his second nine weeks average decreased 12.5 . what was his average for the second nine wekks

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 numbers are included in the set of integers? what numbers are not included?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?