Answer:
15
Step-by-step explanation:
you do parenthesis first
9-6=3 then add 3 to 12
3+12=15
Answer:
9.54731702 astronomical units
Step-by-step explanation:

Substitute this value in the equation above:

⇒ 
⇒

Hence, its distance from the sun is 9.54731702 astronomical units.
Erm- can’t answer this. We need the graph