Answer:
so what's the question? i'm a bit confused..
Step-by-step explanation:
1. x(2x^2-x+4)
2.-3(y-1)(y+2)
3.-(11w^2+18w-1)
What you have to do is multiply 21 by 2. it is 42. $42 dollars was the original price of the bookcase.
To find the area, you will need to times the length with the width.
So,
2.25*1.8=4.05 meters
1m=100cm
4.05m=405cm
Hope this helps.
