Find the magnitude of the vector from the origin to (-7, -5) and write the vector as the sum of unit vectors.
A, sqr74, 7i+5j
B, sqr75, 7i+5j
C, sqr74 -7i-5j
D, sqr75 -7i-5j

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.