1) The Brady family hikes the South Kaibab Trail down to the bottom of the Grand Canyon. 2
Their elevation changes by an average of -
11
mile per hour for the first 3 hours.
.) Which expressions represent the Bradys' change
in elevation for the first three hours of their hike?
Choose ALL that apply.
3:
(
: 3
( ^) + (-1) + ( )
3
3