Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 778. Find a linear equation which fits this data.

A. y = 3.555x + 505.5
B. y = 3.95x + 501.5
C. y = 3.555x - 505.5
D. y = -3.95x + 501.5


Answer: B

Mathematics

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