The firework store charges $0.95 for each roman candle firework until a person purchases 20. Any roman candles purchased over 20 are reduced in price by 20%. What would someone pay for fireworks if they purchased 35 roman candles? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW ME YOUR WORK!!)

Among the most famous of all meteor showers are the perseids, which occur each year in early august. in some areas the frequency of visible perseids can be as high as 40 per hour. given that such sightings are poisson events, calculate the probability that an observer who has just seen a meteor will have to wait at least five minutes before seeing another.