You have lunch at an italian restaurant. the cost of lunch before tax is
$12.50. the sales tax rate is 7%. you leave a 20% tip on the pre-tax amount.
what is the total amount you spend on lunch, including tax and tip?

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.