3 pounds (lbs) = Grams (g)
How do you work this problem

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

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Which number line correctly shows 0.8 + 0.3?