Question $1$

A$.$ Ms$.$ Amy financed her car today from her friend for $$25,000.$ She agrees to pay the loan in what amounts in two installments. Cost installment she will pay in one year. And the second in two years. What is the size of the equal payment at $7\mathrm{.}6\%$ p$.$a compounded quarterly?

B$.$ Mr sam owes his friend Jake and he agreed to pay Jake $$2,500$ in six months and $$4,500$ in $3$ years with interest at $6\mathrm{.}9\%$ p$.$a$.$ Compounded semiannually. Mr Sam face some financial problem so he renegotiated the payment plain with Jake. As per the new payment plan he agrees to pay $$3,000$ in one year from now and one more final payment in $4$ years. What$$s the size of Sam$$s final payment if the money is worth $12\mathrm{.}12\%$ p$.$a$.$ Compounded quarterly?

Answer part A and B and provide formulas and full steps.