You’re solving for the volume of the cylinder. so the way you would do this is the area of the base of the cylinder (pi times radius squared) which in this case would be 3.14 x 10^2 which is 314. you would then multiply by h, the height, which here is 10. 314 x 10 is 3140.
Silver cars before shipment = 30% of 40 = 12 silver cars after shipment = 60% of 80 = 48 Total number of silver cars out of 120 = 48+12 = 60, which is 50% <span>E is my answer.</span>