A delivery driver makes $65 each day that he works and makes approximately $7 in tips for each delivery that he makes. If he wants to make at least $191 in one day. at least how many deliveries does he need to make?

Simplify the expression 10/11(22z) + (a+5) -1

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.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?