Answer:
C
Step-by-step explanation:
Increase is difference between ending and begining value so 23-(-8) =23+8.
In this case its absolute value because it has to be positive
B
Answer: p-8=-16
p=-16+8
p=-8
I would say its the second one.
the student shouldve distributed the 2^3x+3 into 2^3x+9