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 will be the last one

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8