33-year old Jean Arthur (who wasn't telling her true age at the time) is ten years older than the character she plays, the 23-year old Sandy, and one year older than 32-year old Lila Lee, who plays her mother. She was born in June 1900 and Lee in December 1901.
The $5.00 that Sandra says was paid for ham and eggs at the Paradise Club would be equivalent to over $110 in 2022.