The diameter of the smaller circle is a radius of the larger circle. What is the ratio of the smaller circle's area to the larger circle's area? Give your answer in fully simplified form. It should look like "x:y", where x and y are replaced by integers.

In the geometric progression –3, 12, −48… what term is 3,072?

The numbers on a football field indicate 10 yard increments. you walk around the perimeter of a football field between the pylons. you walk a distance of 30623 yards. find the area and perimeter of the indicated regions. write your answers as mixed numbers, if necessary. a. one end zone: perimeter: yd area: yd2 b. the playing field (not including end zones): perimeter: yd area: yd2 c. the playing field (including end zones): perimeter: yd area: yd2

Write the percent as a fraction or mixed number in simplest form. 0.8%