The one on the left with the large "m" is either Byzantine or an early Islamic coin imitating the Byzantines, dating sometime from the period 600 - 800 AD; I can't see enough details to say anything more about it.
The one at bottom right is Islamic, perhaps from one of the Indian states; the top line in the top pic says "Mohammad", which frankly doesn't help much in narrowing things down.
No idea about the one on the top right.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis