Answer:
See Explanation
Explanation:
Given

The attachment completes the question.
(a): What does t represent
t represents the time in minutes
(b): What does a(t) represent
This represents the altitude of the balloon at time t
(c): What information will a(5.5) give?
The information it will give is the altitude of the balloon at 5.5 minutes
And this altitude is calculated as follows
Substitute 5.5 for t in 



<em>The balloon will be at an altitude of 182.5 at 5.5 minutes</em>