Korey states that 7.898898889 is a rational number because it is a repeating decimal

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase