The scatter plot shows the number of years of experience, x , and the hourly pay rate, y, for each of 23 cashiers in Texas. (a) Write an approximate equation of the line of best fit for the data. It doesn't have to be the exact line of best fit. (b) Using your equation from part (a), predict the hourly pay rate for a cashier with 18 years of experience. Note that you can use the graphing tools to help you approximate the line