Here are the abbreviated financial statements for Planner's Peanuts:

Assume the payout ratio is $50\%.$

a$.$ Calculate the internal growth rate where no external debt or equity is to be issued.

Note: Do not round intermediate calculations. Enter your answer as a whole percent.

b$.$ Calculate the sustainable growth rate where the firm maintains a fixed debt ratio but issues no equity.

Note: Do not round intermediate calculations. Enter your answer as a whole percent.

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