Answer:
1mm, 1cm, 1m, 1km.
Step-by-step explanation:
Answer:
-6.5 :D
Step-by-step explanation:
add all of the numbers together then divide by how many there are.
Answer:
10
Step-by-step explanation:
Set up a proportion:

Do cross multiple. 15 x 2 = 30, 30 divided by 3 = 10.