The equation y =-x+4 is the boundary line for the inequality y< -x+4 which sentence describes the graph of the inequality?

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.