Answer:
20 is the greatest common denominator. You can find this by listing the factors of each number. The highest number that can fit into both individual numbers is the common denominator. Since 40 is just 20 doubled, and 20 is just 20 once, it fits into both numbers and is also the highest number that can fit.
The 16-ounce soft drink for $1.99 is better because it may be 40 cents more but it's also bigger :)
I am taking french but im only 7% fluent as of yet
-2x^3-x^2-6x-7
I don't really know what else
It’s A because I did the test lmafo