Huang buys 3 shirts that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill. Which expression represents the amount of change Huang should receive? Select three options.
100 β (12(3x))
100 β (3x+12)
(100 β 12) β 3x
(100 β 12)(x+x+x)
100 β (x+x+x) β 12\