The cost of a jacket increased from $90.00 to $99.00. what is the percentage increase of the cost of the jacket?

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?

Measure a and b and find their sum. how are the angles related?

Based on the diagrams, what is the value of x?