a. If a firm has a net profit margin of15%,and a debt to equity ratio of1.1, and a total asset turnover of 0.88and a retention ratio of 25%.What is the sustainable growth rate.(enter percentages as decimals and round to 4 spaces)

b. If a firm has net income $2,500,000, a profit margin of 8% and accounts receivables of $1,000,000.Assuming 75% of sales are on credit, calculate the company's days sales in receivables. (Round to 2 decimals)