It's already in simplest form
The answer is 72 (--> second choice).
I can prove it without calculator so you believe me:

Answer:
50
Step-by-step explanation:
.3x=15
x=50
It would be 220 rounded to the nearest ten because the number in the ones place does not equal or exceed 5.
So 220 is your answer :)
Answer:
yes!
Step-by-step explanation:
when we simplify this we will get 6b+3, which is a binomial so yes it is a polynomial!
hope this helps