Find the slope and y-intercept of each equation

y = x - 3
m = ?
b = ?

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?

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5

The area of each triangle is 7 square units. the surface area of the triangular prism is