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0 votes
Can someone please help me with this?

Can someone please help me with this?-example-1

2 Answers

6 votes

Answer:

Helpful

Step-by-step explanation:

User Israt
by
4.9k points
3 votes

Answer:

helpful

Step-by-step explanation:

they're helpful because they can be used to test out the real thing in cheaper and safer ways

User Valeriocomo
by
4.4k points