What is the factored form of the following expression?

w2 + 18w + 77
a. (w – 7)(w + 11)

b. (w – 7)(w – 11)

c. (w + 7)(w + 11)

d. (w + 1)(w + 77)

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