Freight charges of a certain courier company are as follows: $40 for the first 2

Freight charges of a certain courier company are as follows: $40 for the first 2 pounds $15 for each of the succeeding pound weight of parcels. At this rate, what amount would be charged on a package which weighs 30 pounds?
A. $450
B. $460
C. $640
D. $600
6. If 5/6 < x and x < 7/4 then x could be ____.
A. 1/2
B. 3/2
C. 2/3
D. 2
7. If a square’s each side is increased by x units, then, after that, its perimeter is increased by how many units?
A. 2x
B. X
C. 8x
D. 4x

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