How can you write the expression "n = n * 2" using short-hand operators?

a. n *= 2 b. n /= 2 c. n -= 2 d. n ^= 2

Which string function do you call when you want to convert the first letter in the string to uppercase?

a. str.startswith() b. str.upper() c. str.capitalize() d. str.lower()

Which function do you call to check the number of items in a list?

a. size() b. length() c. check() d. len()