. Each of the students at a piano recital takes about minutes to introduce themselves and play 3 songs. There are 9 students playing in the recital. About how long will the recital last

Can you answer my question? will mark brainiest!

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.

The parabola opens: y=√x-4 (principal square root) up down right left