Answer:
34
Step-by-step explanation:
Answer:

Total weight of gravel on the roof = 
Step-by-step Explanation:
The area Adams planned to cover with gravel can be divided into 3 rectangles as shown in the diagram attached.
We would have 3 rectangles. See the attachment below to check out how we arrive at the dimensions of the 3 rectangles.
Area of rectangle = L*W
Area to be covered by gravel = area of rectangle 1 + area of rectangle 2 + area of rectangle 3
Area to be covered with gravel = 

Total weight of gravel on the roof = 12 pounds per square foot multiplied by total area of the roof to be covered = 
Tan(x) = sin(x) / cos(x)
Csc(x) = 1/ sin(x)
You'll see this better if I use latex.

Now just cancel numerators with denominations. They all disappear. The cancelations leave 1 on both the numerator and denominator.
Answer:
the answer is A
Step-by-step explanation: