Answer
a) 1.11 m
b) 298 cm
Work Step by Step
a) Converting to meters:
$$ =\frac{111\ cm}{100 \ cm/m} \\ = 1.11 \ m$$
Thus, the difference is:
$$ = 2.6 \ m - 1.11 \ m \\ = 1.5 \ meters$$
b) We know that 2.6 meters is 260 cm. Thus, the difference in two years in cm is:
$$ = (260 \ cm- 111 \ cm) \times 2 \\ = 298 \ cm$$
