Steven was supposed to make a payment of $$2,250$ in $1$ year and another payment for $$900$ in $7$ years to Maroon Inc. as part of a payment plan. Instead, she is trying to reach an agreement with the company where she would settle both payments in $3$ years. Assume that money is worth $3\mathrm{.}56\%$ compounded semi$-$annually.

a$.$ Calculate the equivalent value of the $$2,250$ payment and the $$900$ payment today.

Round to the nearest cent

b$.$ Calculate the size of the payment required in $3$ years to settle the amount.

Round to the nearest cent