Answer:
8.9
Step-by-step explanation:
The distance between each point is 8.9, hope this helps!
32 cm (I hope this helps you)
This question requires you to know the lowest common multiple (LCM) of 5, 4 and 2. there are a few ways to do that. in this case the LCM would be 20. this means that in 20 year the science department would buy all 3 equipment at the same time