Which of the following expressions represents the phrase "19 less than a number"? n + 19
n ÷ 19
19 - n
n - 19

Which of those sequences is a geometric sequence

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.

Acircle has a circumference of 28.36 units what is the diameter of the circle