20 3/3 How do I change each of the mixed numbers with improper fractions to whole or mixed numbers

it would be 6xy and -16xy.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.