Math 101

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