A recipe for pie crust uses 2/3 cup of butter. One stick of butter is 1/2 cup of butter, which is equivalent to 8 tablespoons of butter. How many tablespoons of butter does the recipe use, rounded to the nearest tenth?

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.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

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?