Final answer:
To find the trunk's height, divide the volume by the product of the length and width. Plugging in the values, the trunk's height is 60 inches.
Step-by-step explanation:
To find the trunk's height, we need to use the formula for the volume of a rectangular prism, which is length × width × height. In this case, the volume is given as 26,880 cubic inches and the dimensions are 4 feet long by 28 inches wide. We need to convert the length from feet to inches, so it becomes 48 inches. Then, we can rearrange the formula to find the height: height = volume / (length × width). Plugging in the values, we get height = 26,880 / (48 × 28) = 60 inches. Therefore, the trunk's height is 60 inches (option b).