Jacobi Supply Company recently ran into certain financial difficulties that have resulted in the initiation of voluntary settlement procedures. The firm currently has $$150,000$ in outstanding debts and approximately $$75,000$ in liquidatable short$-$term assets. Indicate, for each of the following plans, whether the plan is an extension, a composition, or a combination of the two. Also indicate the cash payments and timing of the payments required of the firm under each plan.

a$.$ Each creditor will be paid $50$ cents on the dollar immediately, and the debts will be considered fully satisfied.

b$.$ Each creditor will be paid $80$ cents on the dollar in two quarterly installments of $50$ cents and $30$ cents. The first installment is to be paid in $90$ days.

c$.$ Each creditor will be paid the full amount of its claims in three installments of $50$ cents, $25$ cents, and $25$ cents on the dollar. The installments will be made in $60-$day intervals, beginning in $60$ days.

d$.$ A group of creditors with claims of $$50,000$ will be immediately paid in full; the rest will be paid $85$ cents on the dollar, payable in $90$ days.

Please show your work including all formulas for Excel and equations. Thank you!