The population of a animal species is decreasing at a rate of 3.5% per year. You have counted 80 of the animals. What percentage will be left each year?

(a) Use the exponential growth or decay model: A (t) = a (1 + r) t where: a = 80 (initial number of 80 animals) -3.5% = -0.035 (decay rate) t → ( number of time periods, years) Then the model is: A (t) = 80 (1 - 0.035) or A (t) = 80 (0.965) t

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8

Ithink you’re answering is e