ASAP atmega32u4 ADC to read a voltage and draw a line to nokia5110 display

Very simple task, however im struggling to implement it. a) Read an analog voltage using teensy / atmega32u4 inbuilt adc and show result to screen b) same thing however read the voltage 5 times and send the averages value c) instead of displaying value, display a line that changes length based on measured voltage d) create a function to draw a box with co-ordinates(x1,x2,y1,y2) 'skeleton' code will be provided, the job is literally just filling in a few blanks and a small function need it done ASAP, withing from now - a few hours (10 at most probably) have and will provide all required files, such as screen font, lcd initialisation ect.