The correct answer is the following.
The correct locations are:
The Maya constructed the city of Chichen Itza.
The Maya invented calendar systems that are still used today.
The Inca built rope bridges.
The Maya was a great civilization that existed on the Yucatán Peninsula in Mexico, and some regions of Guatemala and Belice. They built the city of Chichen Itza, where had the impressive Pyramid called "the Castle," and an observatory, because the Mayas were great Astronomers that invented the Maya Calendar called the "Tzolkin," that is still used today.
The Incas were the great prehispanic civilization in South America. They built the monumental city of Machu Pichu in Peru.
<span>For control of Central Asian trade routes, lasting from 1830 to 1907. </span>
Hi
"D" is correct : Percentage-based fees assessed by the government
In an era when NASA is led by an African American man (Administrator Charles Bolden<span>) and a woman (Deputy Administrator </span>Dava Newman<span>), when </span>recent NASA Center Directors<span> come from a variety of backgrounds, it's easy to overlook the people who paved the way for the agency's current robust and diverse workforce and leadership. Those who speak of NASA's pioneers rarely mention the name Dorothy Vaughan, but as the head of the NACA's segregated West Area Computing Unit, Vaughan was both a respected mathematician and NASA's first African-American manager. I learn this from class and from a book I hope this helps
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<span>North America, South America (where the Incas lived), Africa, etc.</span>
