The mean of four numbers is 30. if three of the numbers are 12, 50, and 48, what is the fourth number? a.120 b.10 c.12 d.30

Every time you drive you will experience a combination of driving conditions and environments.

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"