I'm having a rough time solving this exercise. if someone could explain it to me and show me the calculations and explain them I would highly appreciate it. Thanks in advance !!

Three compounds were extracted and purified from a commercial sample, identified as A, B, and C. Once the components were identified, the sample was analyzed by chromatography (GC) with flame ionization detector (FID) using a 15 carbowax column m length. The dead or migration time (tM) of the run was 1.01 minutes. The values retention time (tR ) and peak width at the base (W) are found in the table:

Calculate:

a) The number of effective theoretical plates of compound C.

b) The retention factor of compound A.

c) The selectivity factor between compounds B and C.

d) The resolution between compounds A and B.

\begin{tabular}{|c|c|c|} \hline solute & Retention Time (tR)min & W (min) \\ \hline A & 1.92 & 0.24 \\ \hline B & 2.38 & 0.31 \\ \hline C & 3.46 & 0.42 \\ \hline \end{tabular}