In order to determine the equivalent measure, use conversion factors. Proceed as follow:
4 in = 4 in · (2.54 cm/ 1 in) = 10.2 cm
7 kg = 7 kg · (2.20 lb/1 kg) = 15.4 lb
6 gal = 6 gal · (3.79 L/ 1 gal) = 22.7 L
65 ft = 65 ft · (1 m/3.28 ft) = 19.8 m
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