Answer:
there doesnt seem to be much information, but from what it looks like it looks like it is 20?
Step-by-step explanation:
YOU JUST FOLLOW THE STEP
75 because 7+77=84 and 84-9=75
The correct answer is 9.42477796077 because pi 3.14ect you would just multiply it by 3 so the answer would be 9.42477796077