Find the range of the data. scores: 94, 97, 86, 92, 90, 88, 72, 90, 84, 98 26 30 22 29

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

In the diagram below what is the approximate length of the minor arc ab

I’m confused on how to work the pie charts