a play train travels around a Christmas tree in a circle the train track measures 6 ft in diameter what is the distance that the train travels​

18.85

Step-by-step explanation:

To find the circumference circle you need to multiply 2 by pie and by radius

The problem gave a diameter so to find the radius you need to divide it by 2

6/2 = 3

so let's plug it in

2 x pie x 3= 18.85

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^