Abookstore bought a case of 10 books at a wholesale price of $84. the bookstore will sell the books at a 25 percent markup, and each book will be sold for the same amount. how much will they sell each book in the case for?

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.