Write a program with C programming

1.Write a program to check whether a given alphabet is a vowel or consonant.

2. Write a program to check if given integer is positive or negative.

3.Write a program to check whether a given number is the multiple of 3, 5, 7, 8, or 11.

4.Write a program that will

do a conversion between Miles and Kilometers. You need to Use

Switch structure for this problem. (i.e. if the given number is in the Miles change the number to

Kilometers and if the given number is in the Kilometers change this into Miles)

5.Redo problem 2 with Ternary (Trinary)

please do it with only C programming.

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