Question

Chris entered a hot dog eating contest. The table shows how many hot dogs remained in his tray at different times.

Answer 1

49-38=11 11/2=5.5
Hope i helped!

Answer 2

The hot dogs remaining are decreasing by 11 as 2 minutes go by.

11 / 2 = 5.5

So he's eating 5.5 hot dogs per minute.

Minutes                   2  4   6   8 9
Hot dogs remaining 49 38 27 16 5