Notes:

Forthright Filly: Howdy! Ah'm Applejack! Apples! Apples! Apples!
Applejack: Ah don't say "apples" all the time.
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Reading Rainboom/Manebow Sparkle: The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side.
Twilight Sparkle: That's a right triangle, you idiot!
Reading Rainboom/Manebow Sparkle: D'oh!
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Care Mare: I would like to be a tree…if that's okay with you. Yay.
Fluttershy: Um…I don't say "yay" that loud.
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Dynamic Dash: Hi! I'm Pinkie Pie and I love to throw parties! I never leave home without my party cannon!
Pinkie Pie: Ha Ha! Your impression of me is spot on!
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Rainbow Fash: I am Rarity, darling. I always love to dress in style.
Rarity: Oh please, in those shoes? Plus the bow doesn't match your eyes. You wouldn't know style if struck you like a lightning bolt.
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Rainbow Spike: I'm Twilight Sparkle's #1 assistant, and I love to eat gems! *roars*
Spike: ???

Derpibooru source
Deviantart source