Hello, there are six different variable to be estimated.
You should learn to look its answer vertically, for example, the first model inclusides three variables>
FCF, ROA,DIVPt-1
Its intercept and Beta coefficient you should know, i guess the data in bracket is T value or standard diviation, it should be explained in original text. when signed with star, means significant in 1%,5% or 10% confidence level
Second model adds two more variable, midconcen, hiconcen.
The others are are same.
Estimation method> ordinary least square is the most usful.
For your reference