Answer:
997/100
Step-by-step explanation:
<span>On every type of factoring problem ALWAYS look first for a GCF, a greatest common factor. </span>

The denominator of a fraction can't be equal to 0.

The function is undefined at x=-1, x=2, x=4, because for these values the denominator of the function would equal 0, and it's impossible to divide by 0.
Edward is correct.
Answer:
$136
Step-by-step explanation:
x = per hour
y = total profit
4 + 4 = 8
Equation:
y = 18x - 8
y = 18(8) - 8
y = 144 - 8
y = 136