Increased price = $10 + $10×15% = $11.50
decreased price = $11.50 - $11.5×25% = 8.625
The shorter plant was 19.24 cm in height.
74% is equal to 0.74, so the height of the shorter plant can be found by multiplying 0.74 by the height of the taller plant, 26 cm.
26 * 0.74 =19.24
so the height of the shorter plant is 19.24 centimeters