Question

A population of 80,000 toads is expected to shrink at a rate of 9.2% per year.

What will the toad population be in 20 years?
3632
7360
11,609
72,640,

Answer 1

11,609!!! Let me know if u need more help!☺

Answer 2

Toad Population = 80000 Rate of shrink = 9.2% = 0.092 => 100 - 9.2 = 90.8% = 0.908 Time t = 20 years Toad population after first year = 80000 x 0.908 = 72640 Next year will be 72640 x 0.908 = 65957.12 This for 20 years lead up to 80000 x (1 - 0.0.092)^20 = 80000 x 0.908^20 = 11609