Is it possible to build a triangle with lengths of 5 7 12

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

What is x and y intercepts for y=x+7

Evaluate the expression. (9 + 5)(3 + 2)0