What is the GCF of 13 and 39

A student purchases 6 different colored folders for her classes (red, blue, yellow, green, purple, and black). She randomly chooses two folders to use for her first two classes.

Estimate the percent: 88:180

There are 6 red marbles, 10 blue marbles, and 9 green marbles in a bag. What is the probability that you will randomly draw either a red or a blue marble?

The list shows numbers in order from least to greatest. - 15, - 3 3/4 - 1.5 ___ 2.3 5 2/3 Which is an integer that can be inserted on the blank line in the list?

Study the pattern and predict the nth term a) 2,5,10,17, ... b) 0,1,4,9, ...

5 1/4 multiplied by 5 1/4

The circumference of the earth is approximately 24,901 miles. The circumference of the earth's moon is about 72.76% smaller than the earth's circumference. What is the approximate radius of the earth's moon? A. 1,079.55 miles B. 6,783.03 miles c.

In another project, researchers caught and tagged 85 sea lions in a bay. Later they caught and released 50 sea lions. Of those, 9 had tags. Estimate the sea lion population in the bay.

Rebecca knows there are 4 quarts in a gallon. She knows that a large drum holds 5 gallons. How many quarts will the drum hold?

5/8 9/16 1/4 3/8 from least to greatest