Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 214
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
Elizabeth Blackwell U.S. stamp issuedIn 1974, Elizabeth Blackwell, America's first female M.D., was featured on a U.S. postage stamp. An engraved image was printed in violet. It was issued in an 18 cent denomination. The postage rate for a first class surface letter at the time was 8 cents per ounce (airmail 11 cents per ounce).« |