19? Lol........................
1) calculate the volume of the tri prism 2) find area of the base face 3) find the height 4) multiply area of the triangle base time height 5) answer will be in cubic units
Work shown above! Box a is 240 lbs Box b is 120 and Box c is 150 lbs hope this helps c:
I believe the answer is 1981/1000 x I think