If someone can solve it in excel and explain how to do it please:

Porphyridium cruentum is placed in a $0\mathrm{.}6$ L batch bead mill. The mill uses $1$ mm diameter beads and rotates at a speed of $360$ rpm$.$ The total protein concentration and the BFE protein concentration are determined with respect to the operation time $($data is shown in the following table$)$

a$)$ Calculate the protein release constant

b$)$ Calculate the BFE release constant

c$)$ Calculate the time at wich $80$&$,90\%$ and $95\%$ BFE release is achieved