A sofa sells for $350. Maddie has a coupon for 20% off the original price. If 6% sales tax is charged on the discounted price, what is Maddie's total cost after the discount and sales tax?

Solve for x by completing the square. 2x^2-4x+7=0

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

If a || b and e || f , what if the value of y ?