how to solve

A regression was run to determine if there is a relationship between hours of study per week (I) and the final exam scores (y). The results of the regression were: y=ax+b a=5,23 b=39.46 12 0.958441 r=0.979 Use this to predict the final exam score of a student who studies 8.5 hours per week, and please round your answer to a whole number