Based on the clue 'at 75 to 100 pounds this largest south american ro...', what is the answer?

What is referred to by 'at 73 sinhalese'? What is associated with: at 7310 feet mount kosciusko is the highest peak on this continent? What is associated with: at 7339 feet mount orohena on this island is the highest point in the society islands? What is associated with: at 74 years of age this 1930s 40s movie companion of tarzan is the worlds oldest living chimp? What is associated with: at 752 am may 20 1927 this single engine monoplane took off from roosevelt field heading east? Based on the clue 'at 76 this center from china would be a big part o...', what is the answer? Based on the clue 'at 8 letters its the longest word hint its latin', what is the answer? What is associated with: at 80 she stepped down as president of the national american woman suffrage association in 190…