What is the common difference between successive terms in the sequence 9,2.5,-4,-10.5,-

Hello! 9 - 2.5 is 6.5. 2.5 - (-4) is 6.5. And so on. If you subtract two terms, the common difference between the successive terms is 6.5, because you subtract 6.5 from a term each time. When it comes to finding the difference between two terms, all you have to do is subtract two numbers and do this a couple of times to find the common difference.

It will might be false

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.