Answer:
Each time, the x is being multiplied by -3 to result in the output.
So for every x input, multiply by -3.
For the y output for 15, you would divide by -3 to find the input x
For example, when 7 is the input, multiply by -3, and the output y would result in -21.
Answer: Pay 250 per month until it’s paid off
Answer:
The slope is -1/4
Step-by-step explanation:
perpendicular line is 
Answer:
Step-by-step explanation:
Rate = 56 gal / 7 min
= 8 gal / min