Calculate the area of a semi circle with a radius of 7cm leave your answer in terms of pi.

What is the 12th term of b(n)=-4-2(n-1)

You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?