Answer:
Following are the responses to the given question:
Step-by-step explanation:
For point A:

For point B:
{x | x is the positive square number less than or equal to 81}
For point C:
All given sets were equal and equal, that since elements and the element no. are identical.
6.32 is the final answer! :)
Answer:
x = -3
Step-by-step explanation:
4x - 1 = -13
add 1 to each side
4x = -12
x = -3
Yes it is always true a biconditional statement is defined to be true whenever both parts have the same truth value.
2/5 is the answer unless your multiplying