Помогите с номером 436

Question

Помогите с номером 436

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Answer 1

42.9/214.5*100=0.2*100=20%
3.003/214.5*100=0.014*100=1.4%

Answer 2

а) 214,5 м3 - 100%                                 б)300,3 дм3 = 0,3003 м3

42,9 м3 -  Х%                                           214,5 м3 - 100%

Х = 42,9 х 100:214,5= 20%                       0,3003 м3 - Х

                                                                     Х = 0,3003х100 :214,5 =0,14%