Answer:
Question 3) x=32
Question 4) x=30
Step-by-step explanation:
180-122=58
180-58-90=32
180-130-20=30
Step-by-step explanation:
- you just substitute (-2) into the x values of the above function

Answer:
21 cups.
Step-by-step explanation:
6x3.5c=21c
C=cups
Slope = (-6 - 3)/(1+2) = -9/3=-3
y - 3 = -3(x +2)
y - 3 = -3x - 6
3x + y = -3
answer is 3x + y = -3 (third one)