Some people advise that in very cold weather, you should keep the gas tank in your care more than half full. irene's car had 5.7 gallons in the 14-gallon tank on the coldest day of the year. irene filled the tank with gas that cost $3.50 per gallon. how much did irene spend on gas?

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.