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 – (12(3x)) 100 – (3x+12)(100 – 12) – 3x(100 – 12)(x+x+x)100 – (x+x+x) – 12

The three shirts cost 3x dollars, and the pants cost $12, so the total purchase costs 3x + 12. Subtracting that total from $100 gives 100 − (3x + 12), which is choice B. Choices C and E also subtract the same costs from $100, so they represent the same change; A multiplies the costs, and D multiplies instead of subtracting.

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