Step-by-step explanation:
One's digit of N can be 2 or 7.
We have been given that professional plumbers suggest that a sewer pipe should be sloped 0.25 inch for every foot.
Therefore, we can find the slope as:


Therefore, the recommended slope for a sewer pipe is 
5c plus 9c is 14c bc 5 plus 9 is 14 and the exponent is c so 14c
Answer:
x=5
Explanation:
Begin to isolate x by adding 12 on both sides of the equation
5x=2x+15
Subtract
2x on both sides of the equation
3x=15
Isolate x by dividing both sides of the equation by
3x=5