The answer would be 2n^2+3n+ 8n-1
Step-by-step explanation:
1/2(6x+1/2)=0
3x+1/4=0
3X=-1/4
X=3(-1/4)
X=-3/4
OR
X=-.75
Answer: 27a^3
It is 27a^3 because if you do 3×3=9 then 9×3= 27
Maria isn't correct of this. Adding these will get you 82960 (You add the numbers) She must have miscalculated.
11 5/8 + 9 1/2= 21 1/8
3/4 - 2/5= 7/20
4 5/6 - 2 1/2= 2 1/3
I think these are right, I apologize if they are wrong.