- Will someone please help me with these. The deadline is tomorrow morning
**P5.2**Write a function that computes the balance of a bank account with a given initial balance and interest rate, after a given number of years. Assume interest is compounded yearly.**P5.3****a.**double smallest(double x, double y, double z), returning the smallest of the arguments**b.**double average(double x, double y, double z), returning the average of the arguments

P5.2 Write a function that computes the balance of a bank account with a given initialbalance and interest rate, after a given number of years. Assume interest is compoundedyearly.def main():#…