Answer:
this is not an answer but I will post one, could you tell us what the answer choices are?
Step-by-step explanation:
it would help with the answers.
Work is provided in the image attached.
This is an arithmetic sequence with common difference 4.3
The rule is an = an-1 + 4.3 where a1 = -22.7
She is incorrect
the GCF of 2, 4 and 8 is 2 (not 8 has she has written)
the GCF of x2, xy and xy4 is x not x2y4
Correct GCF of the 3 terms is 2x
3.2a-16=4a
x= -20
hope that helps