3 hours worked - $19.50
0.5 hours - x
x= 0.5(19.5)/3
x=3.25
and then do the same for the other cases
One gallon per every 16 minute. 8g - 5g = 3g
48 minutes ÷ 3gallons = 16 minute per reduced gallon.
The answer is 10, hope it helps
-x^2+7x+12
Let’s use distributive property
6(x+2)-x(x-1)
6x+12
Now the other part of the expression
-x(x-1)
-x^2+x
Put both parts of the expression together
6x+12 -x^2+x
-x^2+7x+12
Hope this helps
