Final answer:
The height of the plant above the ground is approximately 2.70 inches.
Step-by-step explanation:
To find the height of the plant above the ground, we need to add the height of the plant to the depth at which it was planted. The plant grows 16% inches, so we can calculate the growth by multiplying the depth by 16%. 16% of 2 1/4 inches is (16/100) * (9/4) = 9/25 inches. Adding this to the depth gives us 2 1/4 + 9/25 = 113/50 inches. Simplifying this fraction, we get 2.26 inches, which is closest to option d) 2.70 inches.