How many marbles must be in the 8th line ? 
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
srry if its wrong but I think it's right :)
btw for the first one
p=19.53
Answer:
Step-by-step explanation:
srry if its wrong but I think it's right :)
btw for the first one
p=19.53