18+2(4-1) equation please help!

Jayda's house is located at (1, 5). she can walk in a straight line to get to cristian's house. a fast-food restaurant is located at (11, 0) and partitions the way from jayda's house to cristian's house by a ratio of 5: 1. find the coordinate of cristian's house. me . im a little stuck

Average acceleration: i have no idea how to do this.

Find the area of the regular hexagon if a side is 20 cm.