Andrea$$s parents deposited $$100,000$ at age $8$ into Bank A that pays $5\%/$year interest compounded semiannually. At age $19,$ they withdrew the money to use $$150,000$ of it for college expenses and deposited the rest into Bank B that pays $4\mathrm{.}85\%/$year interest compounded continuously until she graduates at age $23.$ She gets hired upon graduation and to get to work she buys a $$55,071\mathrm{.}94$ car by using all the money in Bank B as down payment and making quarterly payments for the loan that charges $8\mathrm{.}25\%/$year interest for $6$ years. The moment her car loan is amortized she decides to open an account in Bank C that pays $6\mathrm{.}71\%/$year interest and she deposits $$500$ every month until age $48$ when she buys a $$629,418\mathrm{.}07$ house by using all the money in Bank C as down payment and securing a $30-$year mortgage with $6\mathrm{.}39\%/$year interest compounded monthly. Andrea retires at age $66$ and sells her house for $$850,906\mathrm{.}49.$ If Andrea adds her equity on top of her retirement account that pays $7\mathrm{.}67\%/$year compounded monthly that she wants to withdraw $$19,626\mathrm{.}57$ every month until age $91,$ then how much she needs to deposit monthly into her retirement account that pays $7\mathrm{.}67\%/$year interest during her employment? AND what was the size of her car payments?