Answers:6) 35ft cubed 7) 36in cubed 8) 15cm Explination: Remember, area of a rectangular prism : HxWxL so in 6 we would multiply all the values together which would be 35. Next in 7 its asking us what is the volume of 12 of these erasers. First we need to find the volume of one so to do that we would do LxWxH which is 2x1x1.5 which is 3 next there are 12 of these so we multiply that by 12 3 x 12= 36 so 36. Next in 9 its asking us what is the height of the prism if the base is 200 and the volume is 3000. Now 200 times what is 3000? For that we would us our great friend division 3000 divided by 200 is 15 so 15.