$1.$ Task

Estimate the expected value of the compressive strength and the strength class of a concrete grade $.........$ C$30/37............................($fck $=........$ N $/$ mm$2,$ fcm $=...........$ N $/$ mm$2)$ at t $=.....\mathrm{.}460.........$ days, if the type of cement used: $.........$ CEM $52,5$ N$.....................!($ The Picture attached shows how the sample was calculated so i require something similar$)$