The sum of two numbers is 66 and the difference is 12 . what are the numbers?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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?

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11