Solve
-Persons Taking a 30-Hour Review Course to Prepare for a Standardized

Solve.
-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 800 . Find a linear equation which fits this data, and which relates score to review time. Use this equation to predict an average score for persons taking a 46-hour review course. Round to the nearest tenth.

A) $684.7$
B) $692.0$
C) $706.0$
D) $696.2$