Answer: 
Step-by-step explanation:
Given
The cost of paint is 
Nikki need
gallons of paint
So, the cost of the paint is the product of the rate and volume of paint
Put the values

Answer:
You cannot solve by factoring
Step-by-step explanation:
We want to solve
by factoring.
We can rewrite as: 
So we have a quadratic equation in
.
We split the middle term to get:
We look for factors -28 that sum up to -6
This is not possible hence the given equation is not factorable
Answer:
$22.50
Step-by-step explanation:
if 3 bags of cat food = 13.50, divide 13.5 by 3 to get the cost of one bag, which is $4.50.
since hes getting 5, we can use 13.50 once and then the price of one bag (4.5) twice for the other two.
so that would be 13.5 + 4.5 + 4.5 = $22.50
hope this helped :)
Answer:
n = - 19
Step-by-step explanation:
8n - 9n - 2 = 17 , that is
- n - 2 = 17 ( add 2 to both sides )
- n = 19 ( multiply both sides by - 1 )
n = - 19