Apost is driven into the ground. the first strike drives the post 30 inches into the ground. the next strikes drives the post 27 more inches into the ground. assume these distances from a geometric sequence. what is the total distance (to the nearest inch) the post is driven into the ground after 8 strikes?

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