Which pair of numbers is relatively prime?

A. 21 and 39

B. 12 and 54

C. 10 and 21

D. 15 and 27

Mikayla has the following songs on her ipod: 14 taylor swift songs, 16 meghan trainor songs, and 17 katy perry songs. what is he probability the the next song that plays is not katy perry

Suppose the mean weight (in pounds) of a newborn elephant is 200 pounds with a standard deviation of 23 pounds. If you take a sampling of 15 elephants, what is the probability that your sample has a mean weight of 198?

Matt is five years older than twice his cousin andy's age. the sum of their ages is less than 35. what is the greatest age that andy could be?

Y=-6x-1 Y=-7x-1 Where do these equations intersect on a graph?

12 ft equal how many inches

Last month, Ed ate 9 apples, 5 bananas, 4 peaches, and 7 oranges. Find the ratio of bananas to the total number of fruit. Then explain it's meaning

Which of the following equations is the equation 2 - 3y + 6x = 0 written in slope-intercept form?

You are wearing a pair of cargo pants with six pockets. You've put $10 in one of the pockets, but you cannot remember which one.

The nutrition facts label on a container of dry roasted cashews indicates there are 161 calories in 28 grams. You eat 9 cashews totaling 12 grams.

The ratio of surface areas of two similar solids is equal to the square root of the ratio between their corresponding edge lengths. true or false