1 This generally includes replacing a few parts like hoses, sensors, or either the compressor or condenser. 2  CostHelper readers report paying $171-$727 for minor air conditioning repairs, at an average cost of $488. 3  Extensive auto air conditioning repairs can cost $1,000-$4,000 or more, depending on make and model.
Their numerical system is similar to that of the Romans, but instead of Xâs and Iâs they use dots, bars and shells. Each dot has the value of one, each bar the value of five, and each shell the value of zero. This brings us to the main mathematical contribution of the Mayans, the concept of zero.
The ancient Maya built their civilization using ideas they learned from the Olmec, an earlier tribe. The Olmec society was built on agriculture.They established farming villages. They were the first people to built roads through the jungle, roads which were used by them as trade routes.he Maya, using their knowledge of astronomy, and building on the Olmec solar calendar, created the most accurate calendar in the ancient world. The Maya also created inventions of their own, inventions like the vast underground reservoirs that held fresh water safely in times of drought.