How would you solve the below?

A professor is interested in understanding the factors on which the grades a student obtains in her final exam depends. She chooses the? student's intelligence quotient ?(X₁?), the grades obtained in the? mid-term exam ?(?X₂), the number of days the student was present in the class in the whole semester ?(X₃?) as regressors. She randomly selects 180 students and estimates the following regression? function:

\fThe value of the adjusted R R will beThe value of z always lies between E] and 1. The value of z can be negative. The value of Hz is always greater than the 2 given that the number of regressors remains the same in the regression equation. The value of 92 increases when a new regressor is added to the regression equation