Army private Olivia Dobbs observes a fighter plane known to be flying at a level elevation of 6.3 kilometers moving away from her. At one point she observes the
plane at an angle of elevation of 49° while one minute later the angle of elevation
is 15º. How fast is the plane flying in kilometers per hour?

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