The number y of apps that can be stored on a tablet varies inversely with the average size x of an app. A certain tablet can store 200 apps when the average size of an app is 28 megabytes (MB).

a. Make a table below showing the numbers of apps that will fit on the tablet when the average sizes of an app are 20 MB, 25 MB, 30 MB, and 50 MB.

b. What happens to the number of apps as the average app size increases?