Answer:
21
Step-by-step explanation:
y = 3x + 9
y = -3x + 12
y=21
Answer:
it should be B,
Step-by-step explanation:
the y-intercept is where it crosses the y axis, so that is the plus 2,
and the slope is -3/7 because it is down 3 over 7 hope this helps
86.3 / 30 = 2.876
Therfore the answer is D $2.88
