Plz i want correct answer quickly , for C programming

Develop a program using do while loop to find the sum of series as follows: Sum = 210 +2 +24+2 where Z value is entered by the uset. Marks Distribution: Program Structure - I mark variable declaration - 1 mark Input - 1 mark process - 1 mark output - I mark Develop a program in to find the area of the equillateral triangle using the following formula: area of the equatorial triangle - side Marks Distribution: Program Structure -1 mark variable declaration - 1 mark Input - I mark process - 1 mark output - 1 mark Develop a program to find the Minimum of two integer numbers using functions. Marks Distribution: Program Structure -1 mark variable declaration - 1 mark Input - 1 mark process - 1 mark output - 1 mark