Answer:
Cost of new tile put in the den is $42 .
Step-by-step explanation:
Formula
Area of rectangle = Length × Breadth
As given
Francis is getting new carpet tiles in his living room and den.
His living room and den are connected.
As given in the figure both living room and den are in rectangular form .
Thus
Dimensions of Den are
Length = 8 ft
Breadth = 3 ft
Area of den = 8 × 3
= 24 ft ²
As given
If each tile costs $2.00 per sq ft .
Cost of tiles put in the den = Area of den × Cost of tiles per square ft
= 24 × 2
= $42
Therefore the cost of new tile put in the den is $42 .