Question

a tree in the park is 21 feet tall. when it was planted, it was 8 feet tall. how much did it grow? 21 feet 13 feet 29 feet

Explanation:

Step1: Subtract initial height from final height

$\text{Growth} = 21 - 8$

Step2: Calculate the difference

$\text{Growth} = 13$

Answer:

B. 13 feet