Ответ:

  1. \(9-2,195=6,805\).

    \(48,0433:6,805=7,06\).

    \(3,0728+7,06=10,1328\).

  2. \(7,2572+7,3128=14,57\).

    \(103,1556:14,57=7,08\).

    \(101,58998-7,08=94,50998\).

  3. \(75,0602-71,7162=3,344\).

    \(3,344:0,055=60,8\).

    \(687,2+60,8=748\).

  4. \(3,05^2=9,3025\).

    \(9,3025:0,61=15,25\).

    \(15,25-5,25=10\).

Ответ: а) 10,1328; б) 94,50998; в) 748; г) 10.