Answer:
It'll take 12 years
Explanation:
Given
Type A:


Type B:


Required
Determine the years they'll reach the same height
First, convert feet to inches in both measurements (this is done by multiplying measurement by 12):
Type A:



Type B:



The height at any year from both trees is calculated using

Where x represents the year;
For Type A:


For Type B:


To get when their height will be equal, we simply equate both expressions:

Collect Like Terms


Solve for x


Hence, It'll take 12 years