Mikayla believes that her score on an upcoming test can be modeled by the equation y=6.3x+60y=6.3x+60 where xx  represents the number of hours spent studying, and yy  represents Mikayla's test score.   Assuming this equation is accurate, predict Mikayla's test score if she studies for 1.5 hours.     Assuming this equation is accurate, predict Mikayla's test score if she studies for 4 hours.

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