Final answer:
To form a biconditional statement, two statements must have the same truth value. The correct statements that can form a biconditional are: If 5f - 8 = -6, then 3d = 3 and if 3d = 3, then 5f = -6.
Step-by-step explanation:
To form a biconditional statement, we need two statements that are both true or both false.
The correct statements are:
- If 5f - 8 = -6, then 3d = 3.
- If 3d = 3, then 5f = -6.
In other words, both statements must have the same truth value. If the first statement is true, then the second statement must also be true, and vice versa.