The answer would come out to 13/30
Answer: 9+4n-1 = 20
We can solve this by substitution.
Replace n with the value given, 3 (remember 4n means 4 times n):
9 + 4*3 - 1
Then work it out using arithmetic
9+12-1
=20
The answer is .I took the test so thats the answer
Answer:
i'm not sure if i'm right but think is cube