8 - b
8 is the total amount of bottles that they started out with.
b is the amount that Nora and her friends drank.
b cannot be greater than 8, since 8 is the limit
C. 8 - b is your answer
hope this helps
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3x + 2y=-10 equation 1
y=-x -4 equation 2
use the substitution method of elimination to get the answer to the question.
*using substitution
substitute equation 2 in one and we get
3x +2(-x-4)=-10
3x- 2x-8=-10
x=-2 and y=-2
Answer:
B
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C does. 8f = 40 divide both sides by 8 to get f=5