3. write the code for the class and its implementation (30 points) e name of the class is BMI data members are name, height, weight accessors, mutators. write the main program(source.cpp), header file(BMI.h), implementation file(BMI.cpp) 4 (10pts) Write a program for calculating the payroll for employees? do the following. get the employee hours . hourly rate is 8.25 e no extra pay for overtime. e calculate the total pay for the pay period. e no comments necessary