Shira condo is worth $$600,000.$ She owes $$300,000$ on $5\%$ fixed$-$rate mortgage compounds semiannually that has four years remaining in its term. Shira pays $$2245$ per month towards it$.$ She also has the following debts:

$$20,000$ unsecured line of credit at $7\%$ with a monthly payment of $$750.$

$$30,000$ on a student loan at $7\%,$ with a monthly payment of $$232.$

$$10,000$ credit card at $20\%$ with a monthly payment of $$253.$

She has already used up her prepayment privileges for the year. She can get a new mortgage at $3\%$ or add funds to her existing mortgage at a rate of $4\%.$ Shira has a conventional mortgage charge against her property. Her lender charges $$300$ to discharge any mortgage and $$500$ to set up new legal documents for any mortgage.

For answers:

Use round numbers for dollars $($i$.$e$.$ $$5678$ vs $5,678\mathrm{.}99)$ and do not use commas in numbers

Use decimal places for percentages $($i$.$e$.5\mathrm{.}098\%$ vs $5\%)$

Find the amortization of the current mortgage.

Find the prepayment penalty for the current mortgage. Calculate both penalty options?

Three$-$Months Interest

Interest Rate Differential

Find the total amount for the New Mortgage Amount?

Find the payment if the penalty is paid and a new mortgage is set up$?$

Find the New Mortgage amount if the mortgage is blended and extended?

Find the interest rate if the mortgage is blended and extended?

Find the payment if the mortgage is blended and extended?

Determine the total current monthly debt costs?

Find the total cost savings per month with the lowest Rate?