A store has a sale with 40% off every item. When you enter the store, you receive a coupon that states that you receive an additional 30% off. Is this equal to a 70% discount? Explain your answer.

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Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?