If x = , what is the value of the following expression? A.
15
B.
10
C.
13
D.
19

Find the sum of the first 8 terms of the following sequence. round to the nearest hundredth if necessary.

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).