Let’s go!
You combine like terms then complete the multi step equation.
So you would get 5+2n=29
So that equals 17 :)
Dear Rosabella09: For 9- Two possible dimensions are 8x15 and 10x20.
For 10- 16(8+18)1/2=208 208-(16x8/2)=208-64= [144 squared feet]
The answer to the equation is 22
Hope this helps you
-AaronWiseIsBae