R-1.1: Write a short Python function, is_multiple(n, m), that takes two integer values and returns True if n is a multiple of m (that is n = mi for some integer i), and False otherwise.

R-1.10: What parameters should be sent to the range constructor to produce a range with values 8, 6, 4, 2, 0, -2, -4, -6, -8.

R-1.11: Demonstrate how to use Python's list comprehension syntax to produce the list [1, 2, 4, 8, 16, 32, 64, 128, 256].

C-1.15: Write a Python function that takes a sequence of numbers are different from each other (that is, they are distinct).

C-1.19: Demonstrate how to use Python's list comprehension syntax to produce the list ['a', 'b','c', ..., 'z'], but without having to type out all 26 characters literally and by hand.