Exact Form:
4/9
Decimal Form:
0.4

Step-by-step explanation:
The given question is of composition. composition means that one function is put into another
Given


So,

Keywords: Functions, Composition
Learn more about functions at:
#LearnwithBrainly
Each number is multiplied by 3
So next in sequence is 81, 243, 729
Answer:
The answer 21 miles
Step-by-step explanation:
Hope this helped!