a mover loads a 100kg box into the back of a moving truck by pushing it up a ramp. the ramp is 4.0 m long and the back of the truck is 1.5 m high. the mechanical advantage of the ramp is

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.