What is 94.5/21? I will give the 10 points

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.

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section