1. A certain Computer Science professor in Lehman College gives 100-point exams that are graded on the scale 90–100: A, 80–89: B, 70–79:C, 60–69: D, <60: F. Write a program that accepts an exam score as input and prints out the corresponding grade.
2. Write a program that counts the number of words in a sentence entered by the user.
3. Write a program that calculates the average word length in a sentence entered by the user.
4. Numerologists claim to be able to determine a person’s character traits based on the “numeric value” of a name. The value of a name is determined by summing up the values of the letters of the name where ’a’ is 1, ’b’ is 2, ’c’ is 3 etc., up to ’z’ being 26. For example, the name “Zelle” would have the value 25 + 5 + 12 + 12 + 5 = 6- (which happens to be a very auspicious number, by the way). Write a program that calculates the numeric value of a single name provided as input.
5. An acronym is a word formed by taking the first letter of the words in a phrase and making a word from them. For example, RAM is an acronym for “random access memory.” Write a program that allows the user to type a phrase and then outputs the acronym of that phrase. Note: The acronym should all be in uppercase, even if the words in the phrase are not capitalized.