Urgent school assignment to be submitted

I have a school assignment to be submitted It is a practical question I requested to submit in less than a week in my school. I am to write program, using C program language, run it print both the program and the output for submission Can it be done perfectly without error in few days. I will forward the questions as soon as I hear from you 1.  The analysis of an electrical circuit results in the following system of simultaneous equations. Write a programme to obtain the values of currents: i1, i2, i3, and i4. i1-2i2- i3+3i4=4 2i1+ i2+ i3-4i4=3 3i1- i2-2i3+2i4=6 i1+3i2- i3+ i4=8 2.    A three-dimensional structure is represented by the following linear equations. Write a programme to obtain the point of intersection of the three planes.     x+y+2z=1 3x+6y-z=0 x-y-4z=3 3.    Write a programme to obtain the Fourier series of the function: fx= {3  for 0<x<5 -3 for 5<x<10