This can be represented by the inequality:
3x + 0.75 ≥ 4.5
Inequality shows the non-equal comparison between two numbers or mathematical expressions.
Let x represent the price of milk per gallon.
Since the price of milk tripled, and then rose another $0.75 per gallon, hence:
Price of milk = 3x + 0.75
The price is now is AT LEAST $4.50 per gallon, hence this can be represented by the inequality:
3x + 0.75 ≥ 4.5
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