The given phrase is
6 more than y .
And we have to put this in algebraic form .
For the phrase "more than", we use addition sign and for the phrase "less than", we use subtraction sign .
So for the given phrase " 6 more than y " , the required algebraic expression is

And that's the answer.
With the whole question ???
Area of a trapezoid is A=height over 2 B1 +B2, so 10+10=20, then 20(8)=160, 160/2=80. Answer is b.