Plz write a quadratic variation equation if g(x) varies directly with x^2, and g(x) = 144 when x = 6. a. g(x)=1/4x^2 b. g(x)=24x^2 c. g(x)=4x^2 d. g(x)=6x^2

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