Hey guys could someone help me please?
please i need this asap!!
thanks so much omgg

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

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

Asap! i'm not good math and i'm lost.