Answer: 17
Step-by-step explanation: ok so first to find the mean you add all the numbers then divide by how many numbers there is so basically 18 plus 15 plus 20 plus 15 then divide by 4 because there is 4 numbers and once you do that it is 17
Since BAF is opposite of DAE, they are equal to each other.
134 - 89 = 45
The correct answer is 45
Answer:
it is not because a polynomial cannot have a negative power
8x + 80
Step-by-step explanation:
positive side
