5. a wooded area in a state park has a mixture of different types of trees. there are 800 pine trees and 50 oak trees. the number of pine trees is decreasing at a rate of 5% per year. the number of oak trees is increasing at a rate of 15% per year. if these trends continue:
a. write two functions to model this situation and graph those two functions on the same coordinate grid. two functions for this model would be:
y = 800(.95)^x
y = 50(1.15)^x
b. during what year in the future will the park have approximately the same number of pine and maple trees?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?