A pair of Nike Air Max shoes were priced at $80 last week but are now on sale for $56. By what percent was the price of the shoes reduced?

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

This is different from the first one can someone me