Answer: 11.125
Step-by-step explanation:
Distribute the 4 into the parenthesis by multiplying the numbers by 4.
New expression is:
24m-28
Answer:
B: 11 minutes.
Step-by-step explanation:
So, we know that the machine prints at a constant rate.
After 3 minutes, the machine prints 108 posters.
So, let’s find the <em>unit rate. </em>We will divide the output over the input. So:

So, the unit rate of the machine is 36 posters per minute.
We can write an equation. If t represent the number of minutes and p represent the amount of posters, then:

Gives the amount of posters p and t minutes.
We want to know how long it will take Jeffrey to make 396 posters.
So, we can substitute 396 for p and solve for t. Hence:

Divide both sides by 36:

Therefore, it will take Jeffrey 11 minutes to make 396 posters.
Subtract 6x from both sides, then square root, and have parabola.
This would be all the factor pairs of 18:
1 by 18
2 by 9
3 by 6
6 by 3
9 by 2
18 by 1