want the answers of part 1 2 3

want the answer of the part 2 3 from the question

Exercise 3-3 Given Data: Part 1 Month High activity level Low activity level Change Variable shipping expenses per unit shipped: Change in shipping expenses Divide by change in units shipped Variable shipping expenses per unit shipped Fixed shipping expenses per month: Total shipping expneses at high activity level Variable cost of shipping per unit shipped (above) Times number of units shipped at high activity level Variable cost element Fixed shipping expenses per month Number of Units Shipped \begin{tabular}{r} 0 \\ 0 \\ \hline 0 \\ \hline \hline \end{tabular} 50 0 50 0 Part 2 Part 3