Asystem of two equations has no solution. one equation is -15x+y=18.

select the equation that would make this system infinitely many solutions.

a) 3y-45x=54
b)3y+45x=54
c)45x+3y=-54
d)45x-3y=54

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

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

Af jewelry box is in the shape of a rectangular prism with an area of 528 cube inches. the length of the box is 12 inches and the height is 5 1/2 inches. what is the width of the jewelry box