9. write a conditional statement that is biconditional. 10. write a conditional statement that is not…

Brief Explanations:

A biconditional statement is a statement that can be written in the form "p if and only if q", meaning p→q and q→p are both true. For a non - biconditional conditional statement, p→q is true but q→p is false.

Answer:

9. An example of a biconditional statement: "A triangle is equilateral if and only if it is equiangular."
10. An example of a non - biconditional conditional statement: "If a number is divisible by 4, then it is divisible by 2." (A number divisible by 2 is not necessarily divisible by 4).