Write an application that presents two buttons and a label to the user. label the buttons increment and decrement respectively. display a numeric value (initially 50) using the label. each time the increment button is pushed, increment the value displayed. likewise, each time the decrement button is pressed decrement the value displayed.

Write a function so that the main program below can be replaced by the simpler code that calls function original main program: miles_per_hour = float( minutes_traveled = float( hours_traveled = minutes_traveled / 60.0 miles_traveled = hours_traveled * miles_per_hour print('miles: %f' % miles_traveled) sample output with inputs: 70.0 100.0 miles: 116.666667