Which expression is equivalent to 73 ⋅ 7−5?

72

77

1 over 7 to the 2nd power

1 over 7 to the 7th power

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

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.

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite