} rutum : 6. (20 points) Write a code that reads a number and finds out if it is a prime number 7. (15 points) Write a program to read 10 positive numbers from the user and print the Inrgest and the second largest values You cannot use "array" 8.(20 points Using 'fot loop, write C programs to print the following sequence of numbers. a. 12345678 b.135 79 11 13 15 c. 10 9 8 7 6 5 4 3 2 1 d-10-8-6-4-2 0 2 4 8 10 e. 3 15 25 35 9. (30 points) Write a C program using control structures(loop iteration) to print the following sequence patterns: . da ii)