===
What does this condition evaluate to?  (True or False) and (False or False)
False

What value does this expression evaluate to?  1 + 3 * 7
22

Convert 34.7 to an integer by truncating.
int(34.7)
===
Suppose you want to print 'yes' if the value of variable x is between
0 and 10 (inclusive).   The following code is not correct.  Please fix
it.

if x >= 0 and <= 10:
    print('yes') 

Ans:
if x >= 0 and x <= 10:
    print('yes')
===
Consider the code below.

def mystery(x):
    y = 0
    z = x
    for i in range(0,3):
       print("i =", i)
       if i * 10 > 1:
           y = y + x
       z = z + 1
    return y

y = 5
x = mystery(y)
print("Result:",x)

Trace the variable values during execution of this program.
Specifically, for each underline in the table below, fill in the value
of that variable after the line has executed, or write `NR'
(for `not reached') if that line was not executed. 

                                during iteration
                           1        2       3     

y = y + x   mystery.y    __NR__  __5___  __10___ 

z = z + 1   mystery.z    __6___  __7___  __8___ 

===
Give the output of the program above.

i = 0
i = 1
i = 2
Result: 10

===
Write the function specified below.

def num_vowels(s):
    '''Return the number of vowels in string s.
    The letter ``y'' is not treated as a vowel.'''
    
    count = 0
    for char in s:
        if char in ``aAeEiIoOuU'':
            count = count + 1
	    
    return count

===
Assume the following functions have already been defined:

def remove_rightmost_digit(num):
    '''num: an int.
       return num with the rightmost digit removed.
       E.g. remove_rightmost_digit(5432) returns 543
       If num has only one digit, return 0'''


def get_rightmost_digit(num):
    '''num: an int.
       return the rightmost digit of num. 
       E.g. remove_rightmost_digit(5432) returns 2 '''

Assume that num has been assigned an int that is at least 4 digits
long. Write code to extract and print the 3rd digit from the right.
For example, if num is 45678, your code should print 6.

Ans:
num = remove_rightmost_digit(num)
num = remove_rightmost_digit(num)
digit = get_rightmost_digit(num)
print(digit)