can someone please help to solve this question?

2. The following table gives the number of hours worked per week at jobs by seven students and their grade point averages (GPAs). Hrs 10 20 15 18 5 10 worked GPA 3.5 3.7 3.0 2.8 2.1 4.0 3.6 a. Calculate the Pearson's Product Moment Correlation Coefficient and describe the relationship b. Estimate and interpret the coefficients that would satisfy the least square criterion c. Calculate the coefficient of determination and interpret the value. d. If a student worked 12 hours in a week, what would be the GPA of the student