Given the building Layout for store A, B,C and D , what portion of the shared $7,500 maintenance costs should be apportioned to store B?

(2,9)

i think thats the answer i checked it on google

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,