Jodie ran at an average spared of 6 km/h for 10 minutes. How far did she run in km

How do you use the elimination method for this question? explain, because i really want to understand!

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).

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)