Question

How to do this please?️​

Answer 1

Explanation:

Using dimensional analysis, let convert km to cm.

`(4cm)/(1km) * (km)/(100000 \: cm)`

Cancel out the km

`(4cm)/(100000 \: cm)`

`(1)/(25000 )`

So n= 25000

iii.

Dimensional Analysis

`(3 \: cm)/(1 ) * (km)/(100000 \: cm)`

`(3 \: km)/(100000)`

Or

`0.00003 \: km`