the mitchem marble company has a target current ratio of 2.0 but has experienced some difficulties financing its expanding sales in the past few months. at​ present, the firm has a current ratio of 2.5 and current assets of $ 2.50 million. if mitchem expands its receivables and inventories using its​ short-term line of​ credit, how much additional​ short-term funding can it borrow before its current ratio standard is​ reached? (in $ million unit)]