Apopulation of 510,000 toads is expected to shrink at a rate of 6.2% per year. which is the best prediction for the toad population in 18 years?
a. 478,380
b. 316,200
c. 161,147
d. 86,108

 c. 161,147

Step-by-step explanation:

The exponential decay function with rate of decay r in x years is given by :-

, where A is the initial population.

Given : Initial population of toads= 510,000

The rate of decay = 6.2%= 0.062

The population of toads after 18 years is given by :-

Hence, the best prediction for the toad population in 18 years is 161,147.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3