18. Which of the following groups of numbers are all prime numbers?

A. 7, 17, 29, 49

B. 2, 3, 5, 9

C. 2, 5, 15, 19

D. 3, 11, 23, 31

A couple has 4 children ages 9, 6, 4, and 1. What is the probability that they are all girls?

What is the value of t=1 3 (4 x (1/2) t-1)

The line plot represents the heights of students in a second-grade classroom. Which statement is true? A. The median is less than the mode. B. The median height is 42 inches, and the mode height is 36 inches. C.

A baker cut a pie in half. He cut each half into 3 equal pieces and piece into 2 equal slices. He sold 6 slices. What fraction of the pie did the baker sell.

Earth takes 365 days to orbit the sun mars take 687 days write and solve an equation to find how many more days d mars take than earth to orbit the sun

Find the solutions to y = - 8x for x = 2, 4, and 8. (16, 2), (32, 4), (64,8) (2, 16), (4, 32), (8, 64) (-16, 2), (-32, 4), (-64,8) (2, - 16), (4, - 32), (8, - 64)

A wireless phone company determines the 12 bones out of every 350 phones are returned because of defective screens if the company just purchased 2000 more units how many model a fun should I expect to return

What's the future value of $1,200 after 5 years if the appropriate interest rate is 6%, compounded monthly?

Nivyana and Ana are selling their apparel to earn money for a cruise. Knitted scarves are $50 each in Mittens are $25 per pair. they cannot make more than 30 scarves and mittens combined.

The median number of students in each music class is 19 people. 16,__,24,17,20,21 What should be the number in the blank?