The total change in the outdoor temperature over 6 hours was −21 ∘F. What was the mean change in temperature per hour?

Enter the correct answer in the box.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

after going and makeing graphs i would go with a,

there is nothing that is matches the graph. if there was i would show you. but therefore my answer is a.

hope i

-lavira: )