uh i'm not sure i think its 2,also im having a terrible day so thank you :3
Answer:
In this equation "a" is a variable.
Step-by-step explanation:
A variable is a term used that does not necessary have a value attached to it. Instead any value can be input in for it.
I'm assuming you mean

Write the 2 as a fraction 2/1 and multiply.
Step-by-step explanation:
x^2/9 z^2
hiiii checkout the steps
we have the factors 2 x 2 x 3 x 5 x 7 = 420. It can also be written in exponential form as 22 x 31 x 51 x 71.
Step-by-step explanation: