Can someone please help me with this?

asked Jan 26, 2022 2.7k views

0 votes

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6 votes

Answer:

Helpful

Step-by-step explanation:

Israt answered Jan 28, 2022

by Israt

8.2k 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

Valeriocomo answered Feb 1, 2022

7.2k points

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