Answer:
There is a 50% increase in the average number of trees planted at the high school
Explanation:
in this question, we are asked to calculate the percentage increase in the average number of trees planted at a high school.
To calculate this, firstly we need to know the old average number of trees planted and the new average number of trees planted. This is already given in the question as 6 and 9 respectively.
Hence, mathematically,
the percentage increase = (new average value- old average value)/old average value * 100
=( 9-6)/6 * 100
3/6 * 100
= 50%