Nats grocery bill was $150, which included 5% club discount. What was not billed before the discount? Right and solve an equation.

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

The triangles are similar. what is the value of x? show your work.

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol