please write Fortran program for this

By Ohm's law, the current I in such a circuit depends on the voltage V and the combined resistance of the three resistors R, with the relationship I = V/R. Compute and display the current I in the circuit given that the total resistance of resistors in series is the sum of the individual resistances. 3. A toll bridge charges $3.00 for passenger cars, $4.00 for buses, $6.00 for trucks under 10,000 pounds, and $10.00 for trucks over 10,000 pounds. Write a Fortran program to output the appropriate toll for a given user input (C for car, B for bus, or T for truck). If T is entered, prompt the user for a character (for greater than 10,000 pounds). 4. Calculate and display the value of n! = n(n-1)(n - 2)...3.2.1