Ralph is 3 times as old as sara. in 4 years, ralph will be only twice as old as sara will be then. find ralph's age now. if x represents sarah's age now, which of the following expressions represents ralph's age in four years?
3x
6x
2x + 4
3x + 4

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.

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12