Answer:
1) [tex](x-1+x+2x)(20)[/tex]
2) [tex]80x-20[/tex]
Step-by-step explanation:
The following formula is used to calculate the area of a rectangle:
[tex]A=lw[/tex]
Where "l" is the lenght and "w" is the width.
In this case you can identify in the given picture that the vegetable garden is rectangular, so you can determine that its lenght is:
[tex]l=x-1+x+2x[/tex]
And the width of the vegetable garden is:
[tex]w=20\ ft[/tex]
Knowing this, you can write the following expression to represent the total area of the vegetable garden:
[tex](x-1+x+2x)(20)[/tex] (Expression 1)
To get en equivalent expression, simplify it:
[tex]20x-20+20x+40x=80x-20[/tex] (Expression 2)
