What is 3+9

i'm jp i know the answer

Ken, Justin, and Tiff have read a total of 90 books from the library. Justin read 3 times as many books as Ken and Tiff read 2 times as many as Justin. How many books did Justin read?

How would you solve $4000 at 3% for 4 years?

A dataset shows that, on average, smokers do not live as long as nonsmokers and heavy smokers do not live as long as light smokers.

Which expression represents "seven less than three times a number"? A. 7 - 3n B. 3n - 7 C. 3 - 7n D. 7n - 3

The following are the temperatures of 10 days in winter in °C. 8, 3, - 1, 6, 0, 5, 2, 9, - 2, 0 Work out the mean temperature

What percent of 2b is: 0.04b; 0.2b; 0.56b; 1.8b; 2.5b; 3b; By what percent are they each larger or smaller than 2b? You have 2 attempts left to earn the full credit for this problem. Answer: 0.04b is % of 2b. It is than 2b by % 0.2b is % of 2b.

2x + 4 = 2 (x + 2) What is x?

What does nth mean in a sequence?

In which range (s) does 75% of the data lie? Check all of the boxes that apply. 81 minutes and 109 minutes 81 minutes and 126 minutes 95 minutes and 138 minutes 109 minutes and 126 minutes

Picking up a hot coal is wich type of heat transfer A. conduction B. convention C. transmission D. radiation