The admission fee to a museum is $12.50 per nonsenior adult, $8 per child, and $8.50 per senior citizen. A tour group consists of m nonsenior adults, (am +
m + 6
children, and en senior citizens.
a) What is the total admission fee of the group?
b) Write an expression for the admission fees of the children in the group
subtracted from the combined admission fees of the nonsenior adults and
senior citizens in the group.
d) Evaluate your expression from b), when m = 24 and n = 4.

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?