Anew plasma-screen television has a purchase price of $8730. if the sales tax on this purchase is $698.40, find the sales tax rate.

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16