I ugly, sadness has come upon me

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

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.