please assist me

HINT: All formulas needed to solve 1a - Id come from your Week 4 Lesson and Week 4 Chapter readings. GIVEN: Quantity of windows sold (Q) Selling price per window (P) Variable Costs per window (VC) Total Fixed Costs (FC) Total Variable Costs (TVC) \begin{tabular}{|r|r|r|r|r|} \hline \multicolumn{1}{|c|}{2023} & \multicolumn{1}{c|}{2024} & \multicolumn{1}{c|}{2025} & \multicolumn{1}{c|}{2026} & \multicolumn{1}{c|}{2027} \\ \hline 4,000 & 5,000 & 6,000 & 7,000 & 8,000 \\ \hline$1,000 & $1,000 & $1,000 & $1,000 & $1,000 \\ \hline$500 & $600 & $583 & $571 & $625 \\ \hline$500,000 & $500,000 & $500,000 & $500,000 & $500,000 \\ \hline & $3,000,000 & & & \\ \hline \end{tabular} SOLVE FOR: a Contribution Margin Ratio 3 pts b Breakeven in sales dollars 3 pts c DOL 4pts d DFL 4pts \begin{tabular}{|l|l|l|l|l|} \hline 2023 & 2024 & 2025 & 2026 & 2027 \\ \hline & & & & \\ \hline & & & & \\ \hline & & & & \\ \hline & & & & \\ \hline & & & & \\ \hline \end{tabular}