NUMBER 28 please:

Scientists studied the population of a species of bat in some caves in Missouri from 1983 to 2003. In 1983 there were 141,200 bats living in the caves. That number decreased by about 11% annually until 2003.
A. Identify the initial amount, the decay factor, and the decay rate
B. Write a function that models and number of that since 1983 then find the number of bats in 2003