What should be done to solve x + 14 = 21

The ages of three siblings combined are 22. The middle is 2 years older than the youngest and the oldest is three-times older than the youngest. What are the ages of each sibling?

What's the unit cube

What are the two different ways to name a plane

Find the sum (the total measure) of the interior angles of a 17 sided polygon?

Rank the following tools for measuring length from the one that gives the least precise results to the one that gives the most precise results. A. Highway mile marker B. The length of a person's foot C. A yardstick D.

If m 1 = 40, find the measure of 7

Anna drove 110 miles in 2 3/4 hours. How many hours would it take Anna to drive 80 miles?

Kevin has a spinner that has 10 equal sections and 2 sections of each color-red, blue, green, yellow, and purple. Kevin spins the spinner 180 times.

This year, Cornell's class took two more than three times as many field trips as last year's class. This year, Cornell's class took a total of 8 trips. How many field trips did his class take last year?

What are all the ways to get 60 by multiplying