Answer:
Step-by-step explanation:
Direct variation has the form y=kx, given k=7 and x=20
y=7(20)=140
It is answer choice A because you have to take the the GCF of each number which is 2x. Then if you were to divide the numbers by 2x you would put those numbers in the brackets.

because

and

and
Answer:
I think its 26 I would not swear it though
It is (7x)
^(2/3). If we look at our exponent laws (SEE ATTACHMENT), we can see that we can express our equation as so.
do you want to know for the multipaction and subtraction and addition