PLEASE HELP 9, 10, 11, 12 find the values of x and y that make the quadrilateral a parallelogram

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

Graph the equationy= x+3[tex]y = x + 3[/tex]

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?