Will give brainliest Please show your work!!! (Please do all of the 21 questions)

Two lines that do not intersect are skew. always sometimes or never

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Percent increase and decrease. original number: 45 new number: 18