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

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

Step-by-step explanation:

answer: add the !

step-by-step explanation: then we will answer

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.