The axis of symmetry for the graph of the function f(x)=3x2+bx+4 is . What is the value of b? −18 −9 9 18

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

Rounded to the nearest tenth, what is the value of x

Convert 3,200,000 to a scientific notation.