Choose the reciprocal of this number 1/2

a. 1/1
b. 2/2
c. 2
d. 1^2

Is this a polynomial function? i need to know asap

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.

Add the two expressions 4.6 x -3 + -5.3 x + 9