KAlgebra/Credit payment

1.Write this Function in console mode.It calculates the monthly interest rate by given yearly interest rate.

x-yearly given interest rate

f:= x-> x/12

2.Write this Function in the console mode.It calculates the whole sum you have to return to the bank

x- the sum you get from the bank

y- the monthly interest rate (you can use the previous function with parameter the yearly interest rate f(x))

z- how many month you have to pay the credit

c:=(x,y,z)-> x*(1+z*y/100)