1. Find the term in the expression y + 1.2y + 1.2z. A. y and 1.2y
B. 1.2y and 1.2z
C. y and 1.2z
D. y, 1.2y, and 1.2z

2. Simplify 2+17x-5x+9.
A. 19x+4
B. 12x+11
C. 22x+11
D. 15x-4

3. Simplify 3(5y+6)-4.
A. 11y+14
B. 11y+18
C. 15y+14
D. 15y+2

4. Factor 81-27p.
A. 9(9-3p)
B. 27(3-p)
C. 27(54-p)
D. 27(p-3)

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.

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.