Pls help you would be a life saver You can write the answer as:

1.(first second or third)
2.( first second or third)
3.(first second or third)

Is this a polynomial function? i need to know asap

The function show two sisters' savings account and the rate at which they plan to deposit money

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.