Mr usher is 186.9cm tall and his sister sarah is 147.3cm.What is the difference between them?
http://www.google.com/webhp?source=search_app#hl=en&sugexp=les%3B&gs_nf=1&gs_mss=186.9&pq=navigation%20acts&cp=13&gs_id=15&xhr=t&q=186.9+-+147.3&pf=p&sclient=psy-ab&oq=186.9+-+147.3&gs_l=&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=99d6414d69e5a888&biw=711&bih=453
39.6cm
39.6
To find the difference between their heights, we need to subtract Sarah's height from Mr. Usher's height.
Difference = Mr. Usher's Height - Sarah's Height
Difference = 186.9 cm - 147.3 cm
Difference = 39.6 cm
Therefore, the difference between Mr. Usher's and Sarah's heights is 39.6 centimeters.