What's one way we can check our answer to 2 ×10 = 20? a. 20 ÷ 10 = 2 b. 20 × 10 = 2 c. 2 ÷ 10 = 20 d. 20 × 10 = 20

Hi!

20 * 10 = 2

20 ÷ 10 = 2

If

2 * 10 = 20

then

20 ÷ 10 = 2

Hope this helps! :)

-Peredhel

a.

Step-by-step explanation:

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

(3x-8) or (3x+8)

step-by-step explanation: