Answer:
You must mix 2.67 gals. of pure alcohol to obtain the desired mixture.
Answer: 7
Step-by-step explanation: Imagine having 5 chocolate bars and then adding 2, or you could try counting with your fingers. Another method is writing a number line and going plus 2 from five so you can visualize it more.
So the expression is:

You can combine like terms, which are terms that contain the same variables raised to the same power. That means you can combine the two

.

The other terms can't be combined.
Your final answer should be

.
Answer:
i believe the y intersept is -4
Distance = speed* time
D= constant rate *1/4 miles/hour