) A school playground is rectangular and has a length of 50 m and
a width of 30 m as shown. A safety zone of uniform w
idth surrounds
the playground. If the area of the safety zone equals the area of the
playground, what is the width of the safety zone, to 2 decimal places?

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?