Question

How old was the sapling when it was 86inches tall?

This equation shows how a sapling's height depends on its age.
h=2a+72
The variable a represents the age of the sapling in years, and the variable h represents the height of the sapling in inches.
​How tall was the sapling when it was 5 years old? 82 inches

Answer 1

at 86 inches tall it was 7 years old

Explanation:

height = 2*a +72

so 86=2*a+72

86-72=2*a

14=2*a

7=a

Answer 2

Based on the number of ridges in the trunk, how many veins will the tree be the same age

Explanation: