The financial statements of Eagle Sport Supply are shown in the table below. For simplicity, "Costs" include interest.

Assume that Eagle's assets are proportional to its sales. Assume a growth rate of $30\%$ in revenue, expenses, and assets in

The tax rate will remain constant.

a$.$ Assume that the dividend payout ratio is fixed at $50\%$ and the equity$-$to$-$asset ratio is fixed at two$-$thirds. What is the

internal growth rate for $2023?$

b$.$ What is the sustainable growth rate for $2023?$