A) 0,0253 hm + 5 baraj + 340 cm + 890 mm = b) 560 cm + 0,025 m + 47690 mm = c) 2 litri + 12 dm + 0,01 m =varog frumos ! urgent va dau 2p puncte !

a)  0,0253 hm =  253 cm ,  5 baraj = 500 cm  , 340 cm , 89mm = 89cm

 1182 cm

b) 560cm +  2.5 cm ( 0.025m to 2.5 cm)  + 4769cm = 5331.50cm

c) 0.002 m ( 2 litre = 0.002 m )  + 1.2 m ( 12dm = 1.2m ) + 0.01m = 1.212m

it doesn't. it was imagined up in the middle ages.

mass and volume are the answers you are looking for