I found out that the data types are

Item _ Number INT (3), Equipment _ Type Varchar (50), Acquisition _ Cost DEC (10, 2)

I get it why item is 3, but I don't know why eqipment is 50 and Aquisition is 10,2

Can you tell me why they have came up with those numbers?

\begin{tabular}{|l|l|l|l|} \hline & ItemNumber & Equipment Type & AcquisitionCost \\ \hline 1 & 100 & Drill Press & 3500.00 \\ \hline 2 & 200 & Lathe & 4750.00 \\ \hline 3 & 100 & Drill Press & 3500.00 \\ \hline 4 & 300 & Mill & 27300.00 \\ \hline 5 & 100 & Drill Press & 3500.00 \\ \hline 6 & 100 & Drill Press & 3500.00 \\ \hline \end{tabular}