Raul is a saver. he sets aside $200 per month during his career of 40 years to prepare for a comfortable
retirement. he does not like the idea of investing so he puts his money in a savings account which earns 2%
interest per year. what is the balance of his retirement account after 40 years?

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.