Stuck on these finance problems, can't seem to get answers correct. Can anyone help to show the work/walkthroughs?

Ingraham Inc. currently has $795,000 in accounts receivable, and its days sales outstanding (DSO) is 57 days. It wants to reduce its DSO to 30 days by pressuring more of its customers to pay their bills on time. If this policy is adopted, the company's average sales will fall by 25%. What will be the level of accounts receivable following the change? Assume a 365-day year

he W.C. Pruett Corp. has $400,000 of interest-bearing debt outstanding, and it pays an annual interest rate of 11%. In addition, it has $700,000 of common stock on its balance sheet. It finances with only debt and common equity, so it has no preferred stock. Its annual sales are $1.72 million, its average tax rate is 30%, and its profit margin is 3%. What are its TIE ratio and its return on invested capital (ROIC)?

Data for Barry Computer Co. and its industry averages follow.

Barry Computer Company:
Balance Sheet as of December 31, 2016 (In Thousands)
Cash	$276,375		Accounts payable	$294,800
Receivables	460,625		Other current liabilities	202,675
Inventories	368,500		Notes payable to bank	221,100
Total current assets	$1,105,500		Total current liabilities	$718,575
			Long-term debt	$552,750
Net fixed assets	737,000		Common equity	571,175
Total assets	$1,842,500		Total liabilities and equity	$1,842,500

Barry Computer Company: Income Statement for Year Ended December 31, 2016 (In Thousands)
Sales			$2,750,000
Cost of goods sold
Materials	$1,265,000
Labor	632,500
Heat, light, and power	165,000
Indirect labor	137,500
Depreciation	110,000		2,310,000

Gross profit		$ 440,000
Selling expenses		275,000
General and administrative expenses		82,500
Earnings before interest and taxes (EBIT)		$ 82,500
Interest expense		49,748
Earnings before taxes (EBT)		$ 32,752
Federal and state income taxes (40%)		13,101
Net income		$ 19,651

Calculate the indicated ratios for Barry. Round your answers to two decimal places.

Ratio	Barry	Industry Average
Current	x	1.59x
Quick	x	1.08x
Days sales outstandinga	days	28.57 days
Inventory turnover	x	7.83x
Total assets turnover	x	1.68x
Profit margin	%	0.67%
ROA	%	1.12%
ROE	%	3.66%
ROIC	%	7.20%
TIE	x	1.69x
Debt/Total capital	%	58.63%

aCalculation is based on a 365-day year. Construct the DuPont equation for both Barry and the industry. Round your answers to two decimal places.

	FIRM	INDUSTRY
Profit margin	%	0.67%
Total assets turnover	x	1.68x
Equity multiplier	x	x