What were the Maya able to accomplish using their mathematical skills?They traded with people in both North and South AmericaThey fought off European explorersThey created a 365-day calendarThey traveled across the Atlantic Ocean

The Maya civilization was known for its advanced understanding of mathematics and astronomy. They used their mathematical skills to create a 365-day calendar, which was highly accurate and comparable to our modern Gregorian calendar. This calendar was crucial for their agricultural planning, religious ceremonies, and historical record keeping.

However, there is no historical evidence to suggest that the Maya used their mathematical skills to trade with people in both North and South America or to fight off European explorers. Also, there is no record of the Maya traveling across the Atlantic Ocean.

So, the correct answer to your question is: They created a 365-day calendar.