Help me plzzzzz Quiz 3: 8) Which of the following correctly tests if a number equals

Help me plzzzzz Quiz 3:
8) Which of the following correctly tests if a number equals 90 or 100?

if (x == 90 and x == 100):

if (x == 90 and 100):

if (x == 90 or x == 100):

if (x == 90 or 100):

9) if (x > 40 and 40 and x x and > 40):

if (50 > x or x > 40):

10) Which of the following is true?

a = 15
b = 10

a = a or a > b

a < b or a == b

a < b and a == b