Question

A toll bridge charges $0.70 for all vehicles with two axles, $1.40 for all vehicles with three axles, $2.10 for all vehicles with four axles, and $2.80 for all vehicles with five or more axles. The total revenue collected in one day is represented by the expression below. $0.70a + $1.40b + $2.10c + $2.80d

Answer 1

Answer: D. the total number of vehicles with three axles that paid the toll.

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