Step-by-step explanation:

<h3>Answer:</h3>

Answer:
for number 10 it is a
Step-by-step explanation:
i don't know but i did do homework and i got number 10 right sorry.
Answer:
2/5
Step-by-step explanation:
add all marbles together: 10 marbles
since only 4 are red, the fraction would be 4/10
4/10 can be simplified to 2/5
Answer:
Triples
Step-by-step explanation:
Circumference of circle =
π
D
where D is its diameter.
If D increase 3 times, Circumference increases 3 time.
Simple linear relationship.1
Hi!
The scale factor is 3.
You just have to divide 6/2 to get 3.