Answer: 
<u>Step-by-step explanation:</u>
Average rate of change is the slope (m) between the two coordinates (-1, -1) and (1, -2).



<span>3x+ 2y+7 -5x+7y
= -2x + 9y + 7
hope it helps</span>
X+x+54=180
2x+54=180
2x=126
x=63
63+54=117
one angle is 63, the other is 117
The area of the arrow it's 660 cm.