The ages of the people at a spinning class are shown below. what is the range in their ages? 29 62 38 47 53 45 56 31 46 52 27 46 38 44 35 25 37 28 26 64 33 43 47 26

Grading scale 1 has the following weights- (tests- 50% quiz- 25% homework- 15% final exam- 10%). calculate your final average if your performance in the class is as follows-test grades- {88, 84, 90, 75, 70, 81); quiz grades- {88, 67, 90, 90, 45, 99, 76, 98, 100}; homework- 90; final exam- 75