va rog repede dau coroana urgent îmi trebuie repede va rog

[tex]\it b)\ 6,24:0,4+7,65\cdot20-1000\cdot0,01\cdot5^2=62,4:4+153-10\cdot25=\\ \\ =15,6+153-250=168,6-250=-91,4[/tex]