Astore is having a sale where movies are 15% off their original price. a movien is on sale for $22.10 what was the orgial price of the movie

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6