Answer:
60 feet
Step-by-step explanation:
The height, h (in meters), of the object launched from a platform is represented by the equation

where x is the time (in seconds) passed after the launch.
The time of launch is
(0 seconds passed after the launch)
Substitute
to find the height:

Step-by-step explanation:
.....................
Answer:
5 And there is extra info.
Step-by-step explanation:
Day 3= 7 miles.
Day 2=2 miles.
7-2= 5