in C language

1. What integer variables need to be declared? 2. What floats (or doubles) need to be declared? 3. What data needs to be entered? 4. What output values must be calculated? 5. How can you prevent integer truncation when calculating the arithmetic average? You may just write the formula 6. If integer truncation is not prevented correctly in step 5, what error will be introduced in the calculation of the arithmetic mean? 7. Explain 2 ways to prevent integer truncation in the denominator of the harmonic mean formula. Also state what will be the resulting problem if such truncation is not prevented 8. Write a sample statement to print the arithmetic mean with two decimal digits