Sharrah needed a plumber to fix her leak. john's plumbing charges $50 per hour in addition to a service charge of $100. fix'a has a 200 service fee and charges $25 per hour. how many hours will it take the two companies to charge the same amount? it's an equation problem.

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.