Laura purchased a prepaid phone card for $25 . long distance calls cost 8 cents a minute using this card. laura used her card only once to make a long distance call. if the remaining credit on her card is $22.04 , how many minutes did her call last

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.

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?