The answer if you need helo with math like this come to me -25
Answer:

Step-by-step explanation:

Answer:97
97
Step-by-step explanation:
80 40 20 10 5
Step-by-step explanation: Divide 20 by 40 then 40 by 80 They all are divisible by .5so then times .5 to get the next terms
Answer:
John = 9
Kim = 6
Vanessa = 3
Step-by-step explanation:
John = n
Kim = n - 3
Vanessa = 0.5n - 1.5
Add them:
2.5n - 4.5 = 18
2.5n = 22.5
n = 9