e: ID: A 8. A student taking an advanced mathematics needed a more advanced calculator. Ebay.com had several auctions for the calculator. The time remaining in the auctions and the current bid price were recorded. Here is the scatterplot of the data, along with the equation of the regression line y = 68.679-0.41x. 80- Current Bid Price (dollars) 45- 40 - 35- 30 25 ( 30 minutes) 10 20 30 40 50 60 70 80 Which of the following is the best statement about a calculator with a half hour remaining on the auction. Time Remaining (minutes) a. Because no calculator actually has a half hour remaining on its auction, its current bid price cannot be predicted b The predicted bid price for a calculator with a half hour remaining on the auction is $56.38. C. The predicted bid price for a calculator with a half hour remaining on the auction is $68.47. d. The predicted bid price for a calculator with a half hour remaining on the auction is $68.68