Scientists studying a population of endangered bats find that the population is decreasing by 16% per year. The current population size is 1,800. What function models the number of years, f(n) , it will take the population to reach a size of n individuals? Replace the values of a and b in the equation to create the model.

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Are the corresponding angles congruent? explain why or why not.