Two bikers, Jose and Luis, start at the same point at the same time and travel in opposite directions. Jose's average speed is 12 miles per hour more than that of Luis, and after 3 hours the bikers are 90 miles apart. Find the average speed of
each biker

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq less than 132. the probability that a randomly selected adult has an iq less than 132 is?