On field day, the P. E. coach creates a group of Negative students by adding six Negative students first, and then adding twelve Negative students later. He uses the following expression to figure out how many students of a certain group he will need.

–6 + (–12)

Evaluate the expression and write the answer below. Write only a number, either positive or negative. No letters.

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. another 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 would you choose and how much would you save with that choice? show calculator try it! if you buy 1000 ml bags, how many do you need to buy each month? type your answer in the space provided and click on the check answer button.

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.