This is a one step or a two step equation

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population, find the population standard deviation, o.79828588912497

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.