Answer:
t represents the time in minutes since the balloon started descending.
a(t) represents the altitude of the balloon at t minutes.
a(5.5) gives the altitude at 5.5 minutes.
Subsequent means following (in time, order or place f.e.)
2(3x+2) I couldn’t find any other ones, your best bet would be to go into decimals or fractions if you want to find more.
Answer:
The temperature of metal after five years = -18.96875
Step-by-step explanation:
Given : Function 
where x is measured in hours
Another function is added h(x)=-x-3
therefore, the resultant function f(x)=h(x)+c(x)

For x=5



Therefore, The temperature of metal after five years = -18.96875