Imi trebuie urgent va rog

B. 2,25:1,5-1,07+12,4:0,2=
=1,5-1,07+62
=0,43+62
=62,43
C. 1,21×(1,5+1,2)^2:1,1=
=1,21×2,7^2:1,1
=1,21×7,29:1,1
=8,82:1,1
=8,0(18)