already got the first part answered by someone on here and it was correct when plugging in for part b and c. I just need to know the coefficient of determination for the least squares regression model. thanks

Thirteen students entered the business program at Sante Fe College 2 years ago. The following table indicates wha each student scored on the high school SAT math exam and their grade-point averages (GPAs) after students were the Sante Fe program for 2 years. a) The least-squares regression equation that shows the best relationship between GPA and the SAT score is (roun your responses to four decimal places): y^=1.0436+.0034x where y^= GPA and x= SAT score. b) For a student with an SAT score of 390 , the expected GPA = (round your response to two decimal places). c) For a student with an SAT score of 790, the expected GPA = (round your response to two decimal places). The coefficient of determination for the least-squares regression model is (round your response to four decimal places)