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Question b- What the purpose of the if statement in if (file_ptr == NULL)

Question c. Complete the function digitSum(int n) so that it works correctly for negative numbers. Describe the approach used in your implementation using comments within your code.

Question b- Write the line for calling the function within the main

Question a- write the statement at A to open “numbers.txt” to read from.

int y; for(y = 2; y < 18; y = y * 3) {     printf("*"); } printf("\ny value = %d", y); c) Which for loop given below will print 4 asterisks (*)?

Evaluate the following expression statements given the following variable initialization:   int x = 5, y = 10, z = 20, m = 26;   printf(“%d”,x / 5 + y % 4 * z – m / 10);

Evaluate the following expression statements given the following variable initialization:   int x = 5, y = 10, z = 20, m = 26;  printf(“%d”, (x = 30) );

The basis of freedom of religion is found in which two principles in the Bill of Rights?

Question e- Given that the file can be successfully opened to read and if the data in the “numbers.txt” file is as follows,  12 15 8 3 20 7 10 18 5 what gets printed?

Given the following programs (assume no syntax error), what is displayed/printed?  #include int main(void) {    int z = -3;    if (z > 0)        z = z * 2;    else if (z < 0);        z = z + 5;    else        z = z - 1;    if (z >2)        z = z / 2;    else        z = z * 3;    printf(“z = %d\n”, z);    return 0;}