Answer:
It has to be 0/37 or 0 over 37
The answer is 4.8 because you multiply 7.35 by 16.25 to get 119.4375 then you dived that by 573.3 o get 4.8.
Answer:
And for this case 
The % of variation is given by the determination coefficient given by
and on this case
, so then the % of variation explained is 20.25%.
The proportion of the variability seen in final grade performance that can be predicted by math ability scores is 20.25%.
Step-by-step explanation:
For this case we asume that we fit a linear model:

Where y represent the final grade and x the math ability scores
Where:
And we can find the intercept using this:
The correlation coeffcient is given by:
And for this case 
The % of variation is given by the determination coefficient given by
and on this case
, so then the % of variation explained is 20.25%.
The proportion of the variability seen in final grade performance that can be predicted by math ability scores is 20.25%.
Squrt (3) \3 that shuld be it