What is the heating capacity, in btus, of a cylindrical storage tank of natural gas with a radius of 3 feet and a height of 10 feet? assume that 1 cubic foot of propane contains 2,516 btus and 1 cubic foot of natural gas contains 1,030 btus. use 3.14 for pi, and round your answer to the nearest btu.

There are several information's already given in the question. Let us write them down first.
Radius of the tank = 3 feet
Height of the tank = 10 feet
Value of pi = 3.14
Then
Volume of the cylindrical tank = 3.14 * (3)^2 * 10
                                                = 3.14 * 9 * 10
                                                = 282.6 ft^3
Now
Heating capacity of 1 cubic foot of natural gas = 1030 BTU's
Then
Heating capacity of 282.6 cubic foot of natural gas = 1030 * 282.6
                                                                                 = 291078 BTU's
I hope the procedure is clear enough for you to understand.

3x + 2x = both people using the same measure of like 5x = x= 25 meters per second. 25ms. it takes them 4 seconds to