<span>denominator is </span>number below the line in a common fraction.
Here's picture to show what is a denominator:
Answer:
flour per cup of sugar=2 1/2 cups of flour
sugar per cup of flour=2/5 cups of sugar
Step-by-step explanation:
By the way the question is worded, I would say you undo addition by subtraction. I hope this helped!
Answer:
We just have to solve each power.

Remember, to solve a power, we just need to multiply its base as many times indicates its exponent.
It's important to know that the negative exponent indicates a position, that's why in the second exercise we needed to change the position of the power to continue.
Answer:
C. 10x^2
Step-by-step explanation: