Please I really need help I will mark you as brainliest!

32 - 14 = 18 girls in the class.
Height of the whole class = 1.515 * 32 = 48.48 m..
Height of all the boys = 14 * 1.56 = 21.84 m.
Height of the 18 girls = 48.48 - 21.84 = 26.64 m.
Mean height of the girls = 26.64 / 18 = 1.48 m.
1.48