Question

A pine is 35 and one half feet​ tall, and grows 3 and one half feet each year. A redwood is 43 feet​ tall, and grows 3 and one half feet each year. How tall will each tree be after 21 years?

Answer 1

Pine would be 108.5 Redwood would be 116.5.

Explanation:

Since they both grow the same amount, we just add their original number by 73.5.