Pls help will give brainliest

120ft

Step-by-step explanation:

To work out the area of this composite shape you would have to work out the two shapes separately. The shape could be split into 2 rectangles.

The formula for the area of a rectangle is base x height.

So, to work out the area of the living room you have to do 15x7=105

Then to work out the area of the foyer, you would have to do 3x5=15

Because you want the area of both of the shapes together, you have to add the two areas of the rectangles together.

So 105+15=120

the answer i think is a)

step-by-step explanation:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option