Answer:
Step-by-step explanation:
2x3+7x3=
6+21=
27ft
To simplify this:

You can factor the denominator and then cancel out some terms. But, this is not factorable. So, I think you are missing a term or you wrote this wrong.
Answer:
1.33
Step-by-step explanation:
4/3
Answer:
3x+15
Step-by-step explanation:
3(x+1)+12=3x+15
3x+3+12
Answer:
it's the fourth one
Step-by-step explanation:
Solve all the problems using exponent rules and the last one equals 632