Output to the screen the value of the decimal-valued variable testScore, assume the variable already contains a value De

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Output to the screen the value of the decimal-valued
variable testScore, assume the variable
already contains a value
Declare π (PI) as a constant, using the approximate value
3.14159.
Declare a decimal-valued variable
named Ft. Prompt the user to enter a decimal
value representing a length in feet, then read the user’s input
into Ft. 
Assume variables V, H, A,
B and C to store decimal
values have been declared, and values for H, A,
B and C have been input.
Write a C++ statement to compute the value for V, if the variables
are related by the mathematical formula.below