If you did $5.50 times 950 you would get the $5,225. So you know that it is the 950 then you know the 950 is the number of bags you need. Then you want no less than $5,225 so it would have to be the x ≤ 950.
Z is inversely proportional to X is the same as z is directly proportional to 1/X which can be written like this:- y=k/X ________ 0.5=k/6 0.5*6=k/6*6 k=3 ; ________ z = 3/14 Z = 0.2