Answer:
7 1/2 cups
Step-by-step explanation:
20 gallons is ten times 2 gallons.
Ten times the amount of water will require ten times the disinfectant (we assume).
... 10 × 3/4 cup = 30/4 cups = 7 1/2 cups
This appears to be just an expression we are simplifying, not an equation we are solving. I THINK you are saying that the expression looks like this:

If you rationalize the denominator, you would get this expression:

which, after simplifying, looks like this:

and that's as simple as I can see that one getting. You can't factor anything out of the denominator to cancel with the numerator, so I think you're as simple as you can get there!
Answer:
2,500,000 This is in standard form.
2.5 x 10^6 This is in scientific notation.
Step-by-step explanation:
One mile is equal to 5,280 feet. If you were to convert to kilometers, it would be 1.609344 Kilometers. Hope this helps! :)
<h2>-CloutAnswers</h2>