Find the circumference of a pizza with a diameter of 18 inches

How do you solving the solution of each system using elimination?

Binh says the point of intersections is (0,-3) which statements identify the errors binh made , check all that apply

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.