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If someone gets $4.95 off a shirt that was originally $24.94, what percentage did they get off? How do I tell if it's polar or non polar in my homework thanks for the help!? What is the volume rectangular prim round to the nearest tenth if need the number are 2m 4m 9m? Can you create electricity from rain? Need help with this precalculus problem of fundamental identities: cos^2x+cos^2 x sec^2x?