Write a main function and subfunctions to compute and print the mass of a balloon inflated to v cu ft, at p pounds of pressure, at a temperature of t degrees. a function reads the input values for the pressure p, volume v , and temperature t from a file datex. dat.
i. pv 0.42m (t 460)
i. m 11 pv 0.42(t+460)
a. a function to compute m from the preceding formula
b. a function to print the values of p, v, t, and m