Final answer:
The tree has grown 110 inches.
Step-by-step explanation:
To find out how much the tree has grown, we need to subtract the initial height from the current height. Let's convert both heights to inches for easier calculation. The initial height is 5ft. 8inches, which is equivalent to 68 inches. The current height is 14ft. 10inches, which is equivalent to 178 inches. To find the growth, we subtract the initial height from the current height: 178 - 68 = 110 inches.