Either one at any given time could be equal to zero. So
x + 2 = 0
x = - 2
x - 18 = 0
x = 18
I've enclosed a graph of this so you can see that the answers I've given are the ones expected.
Answer:
Step-by-step explanation:
Add and then multiply the one left
(9x-2) - (5x+6) =
4x-8 , this is your profit function
Answer:
<em>Not true. Actually, 1 2/3 equals 5/3.</em>
1 gallon is $4.20
16.80/5=4.20