Write a C program that reads 10 marks into an array as follows: 1 4 6 7 4 4 6 8 6 1. The program must declare the array called marks and print the contents of the array.

Use a while-end loop in a script file to calculate the sum of the first n terms of the series: summation sign on the top n bottom k=1 : )^k * k^2 +5k)/3^k show the script file and the two results of n = 10 and n = 20.