5. Stanley is purchasing old VHS movies on Amazon for $1.25 each and $30 to spend. If they apply a 7.5% tax and an additional 10% of the total (with tax) for shipping, how many movies can he purchase? Set up and solve an equation to answer this question. 6. Harry has been staying up all night with his friends studying for their Potions Exam. He decides to go to Hogsmead to pick up some butter beer. Each butter beer costs $1.49, and he plans to pick up a $0.99 pumpkin pasty for himself. There's a 9.75% sales tax at Hogsmead, and Harry plans to give a 20% tip (after tax). If Harry and his friends pool together $24.25, how many butter beers can he purchase? Set up and solve an equation to answer this question. 7. Consider the equation 5x + 2y = 10. a. Solve this equation for y. b. Solve this equation for x.4. You have two coupons to the same store: one for 20% off and one for $30 off. The cashier will let you use them both, and will let you decide in which order to use them. 20 % 30 YOUR ENTIRE PURCHASE 4 CraftMart OFF YOUR PURCHASE CraftMart hearts Desires . Mai says that it doesn't matter in which order you use them. You will get the same discount either way. . Jada says that you should apply the 20% off coupon first, and then $30 off coupon. . Han says that you should apply the $30 off coupon first, and then the 20% off coupon. . Bill says that it depends on how much you are spending. Do you agree with any of them? Explain your reasoning below