Acertain species of animal is endangered and it’s numbers are decreasing 12% annually. there are currently 230 animals in the population. which is an exponential function representing the population and the estimated number of animals in 5 years? a: f(x)=230(0.88); 1012 animals b: f(x)=230(0.88); 121 animals c: f(x)=230(1.12); 1288 animals d: f(x)=230(1.12); 405 animals

Kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.90. how many of each type of coin do they have?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books