pleaseeee help with C only, i have tried everything!!:(

EXCESS CAPACITY Williamson Industries has $5 bilion in sales and $1.7 billion in fixed assets. Currently, the company's fixed assets are operating at 90% of capacity. a. What level of sales could Williamson Industries have obtained if it had been operating at full capacity? Write out your answer completely. For example, 25 billion should be entered as 25,000,000,000. Round your answer to the nearest cent. 5560000000 b. What is Williamson's target fixed assets/sales ratio? Round your answer to two decimal places. 30.63 C. If Williamson's sales increase 12%, how large of an increase in fixed assets will the company need to meet its target fixed assets/sales ratio? Write out your answer completely. For example, 25 billion should be entered as 25,000,000,000. Round your answer to the nearest cent. Negative amount should be indicated by a minus sign. Do not round intermediate calculations. 15280000