Employee	Work Experience (years)	Car Sales (unit)
1	1	80
2	3	97
3	4	92
4	4	102
5	6	103
6	8	111
7	10	119
8	10	123
9	11	117
10	13	136

please explain how to get to the answer too
a. Determine a simple linear regression equation that can be used to predict car sales based on work experience.
b. Calculate the SST, SSR and SSE values
c. Calculate the coefficient of determination r2
d. Make a scatter diagram of the car sales data 

This is about statistics, please help me Thank you very much!