Me! can someone me solve these problems.

What is 20+(5 x 2/5 )+ 3 show your work

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.

Somone me i want to know what 18 hours out of 24 hours in a fraction