Can you answer these questions about breeding Platies?

I have a couple of questions about breeding Platies. ♥ How many females should I have per one male? ♥ How many fry does one have? ♥ Should I seperate the fry from the main tank? Should I put the pregnant platy that has squared off into a different tank before it gives birth instead? ♥ How long is the... show more I have a couple of questions about breeding Platies.

♥ How many females should I have per one male?
♥ How many fry does one have?
♥ Should I seperate the fry from the main tank? Should I put the pregnant platy that has squared off into a different tank before it gives birth instead?
♥ How long is the gestation time for a female?
♥ Platies can mate with different kinds of platies, right?
♥ How often do they mate?
♥ Any other information I need to know?

Thanks!
Update: Also, what is their average lifespan?
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