I think that’s the answer
2 gallons is equal to 8 Us quarts (i need 20 words to answer, that is what this is)
Your answer is A, you can be a carrier and not have the disorder
X=20
180=7x+x+20
-20. -20
180=7x+x
180=8x
divide by 8
x=20
The correct answer is C. 4.
Typically, we look to multiply by the bottom number (the denominator) in order to get fractions to cancel out. If we multiply 1/6 by 6, we get just 1, which is why we do it.
In this problem, you have two different denominators, 2 and 4. If you multiply them all by 2, the term -3/4m will still be a fraction.
-3/4m * 2 = -3/2m
As a result, we must try 4 instead. This causes all of them to cease being a fraction. Even the one with 2 as a denominator.
-1/2 * 4 = -2