An online music club has a one-time registration fee of $25.95 and charges $0.99 to buy each song. allison received $100 at her birthday party and has decided to join this club. after joining, what is the maximum number of songs she can buy?

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20