If you deposit A which yields returns of B at the end of each of the first n years then establish the mathe- matical equation to calculate the rate of return, r, from this investment. [If you need three bonus marks, use MATLAB/SCILAB (or any other programming language) and calculate the value of r; attach the code and [5] results from this code). G: A = R25000, B = R5000, n = 6. G: A = R30000, B = R6000, n=5. G3 A= R10000, B R2000, n= 7. G4 A R20000, B= R4000, n = 6. : Gs: A= R40000, B = R10000, n = 5.