What did the u.s. agree to pay panama for the right to build the canal ?

They agreed to pay an annual rent of land called the Canal Zone

The US paid Panama 10 million for perpetual lease of the land plus $250,000 a year for rent

Cicero, Marcus Tullius (106-43 bc), Roman statesmen, orator and writer. Cicero established a model for Latin prose his surviving works include speeches treatises on rhetoric philosophical works and letters he was a supporter of Pompey against Julius Caesar