Answer:

Step-by-step explanation:
the answer u will get after
Answer:
A. 0 <= x <= 8
Step-by-step explanation:
4 <= x + 4 <= 12
Remove 4 from all sides
4 - 4 <= x + 4 -4 <= 12 - 4
0 <= x <= 8
Answer:

Step-by-step explanation:
The given linear equation is

To solve for y, we first subtract 3x from both sides to obtain:

Divide through by 5

This simplifies to

Or

Just in advance ,not very good at it
Add them all up and divide by 30. Answer: $55.20.