This is my class INFOST 440
I have a great teacher
Charley Cha.
Abraham Cha.
Kee Cha.
Mai Cha.
9 + 8 = 17
98.9 + 56.8 = 155.7
99.9 + 77.7 = 107.67
They group reusable logic to avoid repition
They take argumenty and return values