For all students at Walden University, the prediction equation for y = college GPA (range 0-4.0) and x1 = high school GPA (range 0-4.0) and x2 = college board score (range 200-800) is yhat = 0.11 + 0.29x1 + 0.0030x2. How much would you expect the college GPA to increase for a 0.2 increase in high school GPA, given a fixed college board score of 564?

Anyone? Please show work and answer, I need to understand this better.

Thanks :)