A wallet containing 5 five-dollar bills, 7 ten-dollar bills, and 8 twenty-dollar bills is found and returned to its owner.  The 
wallet's owner will reward the finder with 1 bill drawn randomly from the wallet.  What is the probability that the bill drawn
will be a twenty-dollar bill?
A.)  1/20
B.)  4/51
C.)  1/8
D.)  2/5
​E.)  2/3

Let the function f be defined as f(x) = 5x² - 7(4x + 3).
What is the value of f(3)?

A.)  -18
B.)  -26
C.)  -33
D.)  -60
E.)  -75​
​