The average height of adult males is 70 inches with a standard deviation of 2.4 inches. If the heights are normally distributed, how high should a doorway be such that 95% of all men can pass through the doorway without hitting their heads.

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

What is the the greatest common factor ?