If 1/2 gallon of paint covers 1/8 of a wall, then how many quarts of paints are needed for the entire wall?

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(hurry! ) which expression is equivalent to the following complex fraction?

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?