40 is 160% of what number?

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

Can someone check if i did this correct. it’s number 4 if you’re wondering.

If i have 20$ and i gave 5$ away how much i got