Digital SAT Math Practice Question #1644
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Rate ($/gal) multiplies g: 0.04g. Flat fee stands alone: + 85.
The variable cost is $0.04 per gallon (\(0.04g\)) and the fixed fee is $85. Total cost \(C = 0.04g + 85\)....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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