It Has Been Hypothesized That Overall Academic Success for Freshmen

It has been hypothesized that overall academic success for freshmen at college as measured by
Grade point average (GPA) is a function of IQ scores (X1) , hours spent studying each week (X2) , and
One's high school average (X3) . Suppose the regression equation is:
Y' = -6.9 + 0.055X1 + 0.107X2 + 0.0083X3.
The multiple standard error is 6.313 and R2 = 0.826.What will the GPA be if the number of hours
Spent studying is 30 the IQ is 108, and the high school average is 82?

A) 3.1446
B) 2.9306
C) 0.428
D) 10.0446
E) 13.1892