Use picture Question 4: Is this equation an identity? Explain or show how you know *
2 points
at +64 = (a + b) (a' - ab - ab+ b3)
No. When I expanded the expression on the right side, I got an expression different
from the one on the left side.
Yes. When I expanded the expression on the right side, I got the same expression as
the left side.

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.