Answer:
2
Step-by-step explanation:
.....................
The rate of change is 72
Let's solve for x ~
➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖
37
10x40 = 400
2(39+42)+ 40 x 4 + 41 + X = 400
162 + 160 + 41 = 400 - X
400 - 363 = X
X= 37