1.
a.
def mystery1(num1, num2):
    """Creates a list containing num2 repeated num1 times"""
    l = []

    for i in range(num1):
        l.append(num2)

    return l

b.
def mystery2(num1, num2):
    """Creates a list containing num2 repeated num1 times"""
    return [num2]*num1

2.
a. error, 5 isn't a sequence so we can't iterate over it in a for loop
b. error, result is initialized as a string, so we can't add numbers to it
c. 'aabbccdd'
d. 'applesapplesbananasbananas'
e. 'applesapplesbananasbananas'
f. '112233'

3.
def stupid_name():
    name = input("Enter your name: ")
 
    # when checking, make sure you compare again lowercase versions
    if name.lower() == "dave" or name.lower() == "david":
        print(name + ", that's a great name!")
    else:
        print(name + ", that's a stupid name!")
        
    print("Nice to meet you, " + name)