Find the distance around the figure by using the appropriate formula. Round approximate answers to the least accurate of the given measurements. (Assume a = 0.1 cm, b = 1.0 cm, c = 1.5 cm, d = 1.9 cm, e = 1.0 cm, and f = 3.1 cm.)

The data represents the semester exam scores of 8 students in a math course. {51,91,46,30,36,50,73,80} what is the five-number summary?

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle