2+2+2+2+2+2+2+2+2+2+2+2+2+3+33

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?