Math question!
pls help
question is in the pic
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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?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

What would the rule be for the reflection of y=-3