Acarpenter uses the equation y = 3.75x to determine how many hours (y) it will take him to build a desk (x). the carpenter built 5 desks. how long did it take him?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Which of the following best describes the figure?

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?