Father bought x sweets.(x-4) were eaten by the children and 20 were left. How many sweets did thier father bought?

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

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Which of the following is not a subset of {1,2,3}?