Convert the fraction 1/5 to a quotient and then a percentage

What is the equation of the graph below? y=sec(x)-4

Find the value of x in the diagram below. select the best answer from the choices provided

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 between 80 and 120.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 between 80 and 120.