Desperate need of help Can not figure out the question neither do I under stand it

Help with either question would be greatly appreciated

Thanks

Ihave this math question 2/3 ÷2 1/10=

Aportion of a line bounded by two points is defined as

Statement: if two points are given, then exactly one line can be drawn through those two points. which geometry term does the statement represent? defined term postulate theorem undefined term