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 774. Find a linear function, S(t), which fits this data, and which expresses score as a function of time. Use this function to predict an average score for persons taking a 49-hour review course. Round your answer to the tenths place.
A. 685.9
B. 697.4
C. 707.2
D. 693.2
Answer: D
Mathematics
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