Question

After a storm, the Serafina family needs to have their roof replaced. Their house is in the shape of a pentagonal prism with the dimensions shown in the diagram. A roofing company gave Mr. Serafina an estimate based on a cost of $2.75 per square foot to replace the roof. How much will it cost the Serafina family to have their roof replaced? $1,500 $2,062.50 $3,850 $4,500

Answer 1

the complete question in the attached figure

we know that

[Area of a rectangle] = Length x Width 
Length=50 ft
Width=14 ft
[Area of a rectangle] = 50*14---------> 700 ft²

[area of the roof]=2*700---------> 1400 ft²

if the cost is  $2.75-----------------> 1 ft²
 X-----------------------------------------> 1400 ft²
X=1400*2.75-------> X=$3850

the answer is 
the cost is $3850