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.
A: The Mayan people used weapons and tools made of sharpened stone and wood, such as farming equipment, hand chisels and bladed weapons. They did not typically use metal tools or weapons. The Mayan people created tools that could be easily used by hand for a wide variety of tasks, such as stone cutting, woodworking, farming and sculpting. They were typically simple in design, with minimal decoration and curved blades fastened to wooden or bone handles.