Suppose that a car rental agency charges a fixed amount per day plus an amount per mile for renting a car. Heidi rented a car one day and paid $100.00 for 300 miles. On another day she rented a car from the same agency and paid $150.00 for 550 miles. Determine the linear function that the agency could use to determine its daily rental charges. 

A. f( x ) = 0.4x - 40
B. f( x ) = 0.4x + 40
C. f( x ) = -0.2x + 40
D. f( x ) = 0.2x - 40
E. f( x ) = 0.2x + 40


Answer: E

Mathematics

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Mathematics