144 cookies was baked packaged inn dozens how many cookies was baked

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

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