Can someone explain this ?

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

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.