If angles P and Q are supplementary angles, which of the following must always be true? Please no link comment an actual answer please!

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?

Is the square root of 4 plus the square root of 16 rational?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year