Please help me with this statistics question, I’m very stuck…

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

I’m really confused and need to learn this