What is the coefficient of x² +7x=0: Wich one?
A. a=1,b=0,c=7
B. a=7,b=0.0=7
C. a=0,b=1,c=7
D. a=0,b=0.c=7
E. a=1,b=7,C=0​

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