Here are advertised horsepower ratings and expected gas mileage for several 2007 vehicles as reported by Kelly

Part A: The linear function for this data is f(x)= -0.0838x + 46.868.
The predicted gas mileage for the Volkswagen Beetle is

34.3
and the residual is

-4.3
Part B: If we add the McLaren F1 to our data set, it has a horsepower of
627, the residual for this car would be

17.7 as the actual gas mileage recorded is 12 mpg.
-5.7 as the actual gas mileage recorded is 12 mpg.
12 as the actual gas mileage recorded is 12 mpg.

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck