Step-by-step explanation:

When you say "which," it sounds like it should be multiple choice. Anyways, here's the simplified form of


(When simplifying fractions, you should <em>never</em> have a square root on the bottom. Multiply by the square root to cancel it out)
A car traveled 140 miles in 2 hours. at this rate, how many miles will the car travel in 5 1/2 hours?
You just multiply
500 is the square root of 36-kg because of 300 tablets
The slope of the line is -2/5x