Solutions

1. 
3
3.0
2.5
False
False


2.
to walk the walk is good
to hear the good is bad
to feel the walk is song
to claim the talk is feel
to feel the talk is bad


3.
15 18
27 10
15 10
28 2


4.
def print_factors(n):
    print("factors of", n, "= ", end='')
    for i in range(1, n + 1):
        if n % i == 0:
            print(i, end=" ")

    return n % 2 == 0

5.
def give_problems(num_problems):
    for i in range(num_problems):
        x = random.randint(1, 12)
        y = random.randint(1, 12)
        answer = x * y
        response = int(input(str(x) + " * " + str(y) + " =? "))
        if response == answer:
            print("correct")
        else:
            print("incorrect...the answer was " + str(answer))
    print(num_problems, "problems solved")


6.
def triangle(n):
    count = n * 2
    start = 1
    for i in range(n):
        print(" " * i, end="")
        for j in range(start, count):
            print(j % (10), end='')
        count -= 1
        start += 1
        print()