Answer:
The distance should be 
Step-by-step explanation:
Distance formula
Answer:
Infinite solutions
Step-by-step explanation:
Simplify both sides, subtract 9x, and add 21x to both sides and you will get 0 = 0 so there is infinite solutions.
Answer:
10
Step-by-step explanation:
Look at where the one gallon gas is, it's point comes to ten. :)
Answer:
its microwave
Step-by-step explanation:
Yes, because a rational number is any number that can be expressed as a fraction a/b where a/b are both integers, but cannot be zero.