Please answer me question no.16,17and18 pleaseeeeee

Dear student,

16. Distance travelled to reach the school = 450m
Distance travelled to reach the market = 765m
Distance travelled to reach home = 855m
Total distance travelled by Rishab = 450 + 765 + 855
= 2070m
We know that 1 km = 1000 m
Hence 1 m = $\frac{1}{1000}$ km
2070 m = $\frac{2070}{1000}$ km
= 2.07 km is the total distance Rishab has covered.

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