Answer:

Step-by-step explanation:
The surface area of the cone shaped roof is:


The cost of roofing per square feet is: (USD stands for US dollar)


The answer is 3 50 means 3 in this situation
Can u be more specific on the options? Cuz there’s nothing for ABCD.
Answer:
Usually there are the variables x y z but it doesn't matter what they are.
Step-by-step explanation:
First choose your first variable to solve. Find x by putting all the numbers and variables to one side.
once you found x substitute the answer for x in all the equations. Next find y and substitute your answer in all the equations again.
Once you have solved 2 variables then you are able to solve z.
If you have questions please feel free to ask in the comments below.