Answer:

Step-by-step explanation
using the rules of exponents, it would be
÷
so then take away 27 from 10 and get -17 meaning that the answer would be A or 
Answer:
8 + 
Step-by-step explanation:
I'm assuming you want an answer to the top section of the question.
We can start with 8.
8
When a problem asks for the sum, it's looking for addition, so we use the + sign.
8 +
The problem says "a number," so let's represent that with x. Basically, x just means a number we don't know.
8 + x
The "number" is divided by 4, so we'll just put x/4 as our second term.
8 + 
How ever many numbers are being multiplied by itself it goes with the to the power of ... if it is being added to itself it is ... times...
Answer to the nearest tenth is 20.8