Calculate and explain your answers:

Application of Exponential Functions GROWTH AND DECAY Calculate and explain your answers. 1. A rare coin is bought at an antique auction in 1998 for $500. Each year, its value appreciates by 6% of its purchase price. Determine the coin's value in 2010. 2. An isotope of sodium, Na-24, has a half-life of 15 h. If a sample contains 45 g of Na-24, find the amount remaining after 5 days has passed. 3. A car cost $32 600 in the year 2001. By 2007, it is worth $12 295. By what percent did the car depreciate (decline in value) per year? Criteria: Communicates mathematical thinking orally, visually, and in writing, using precise mathematical vocabulary and a variety of appropriate representations, and observing mathematical conventions with a high degree of effectiveness. Poses and solve problems involving exponential relations arising from a variety of real-world applications with a high degree of effectiveness