CAN SOMEONE PLEASE HELP THIS IS A BIG GRADE AND IM SO CONFUSED HOW DO I FIND THE UNIT RATES OF THESE GRAPHS AND PUT THEM INTO AN EQUATION

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?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?