Assume that a car owner contracts with a mechanic to have his engine overhauled. The mechanic mistakenly used original equipment quality piston rings in doing the overhaul, whereas the contract had called for the use of premium quality rings that are better than original equipment quality. Assume that the rings used by the mechanic should not affect the performance of the car. Which of the following is true? a. This is a substantial performance, and the owner must still pay something to the mechanic.
b. This is a novation, and the owner owes nothing to the mechanic.
c. This is a substantial performance, and the owner owes nothing to the mechanic.
d. This is a material breach, and the owner owes nothing to the mechanic.
e. This is a material breach, and the owner must still pay something to the mechanic.

Joe pays ann to mow his lawn and ann mows vanna's lawn by mistake. vanna peers out her window and sees ann mowing, yet says nothing to ann about her mistake since vanna needs to have her lawn mowed. when ann approaches vanna for payment, vanna refuses, arguing that she never asked ann to mow her lawn. under these circumstances, ann can recover payment from vanna under:

This problem has been solved! see the answercompute and interpret altman's z-scoresfollowing is selected financial information for ebay, for its fiscal years 2005 and 2006.(in millions, except per share data) 2006 2005current assets $ 4,970.59 $ 3,183.24current liabilities 2,518.39 1,484.93total assets 13,494.01 11,788.99total liabilities 2,589.38 1,741.00shares outstanding 1,368.51 1,404.18retained earnings 4,538.35 2,819.64stock price per share 30.07 43.22sales 5,969.74 4,552.40earnings before interest and taxes 1,439.77 1,445.18compute and interpret altman z-scores for the company for both years. (do not round until your final answer; then round your answers to two decimal places.)2006 z-score = answer2005 z-score = answerwhich of the following best describes the company's likelihood to go bankrupt given the z-score in 2006 compared to 2007.the z-score in 2006 is half of the 2005 score. both z-scores are well above the score that represents a healthy company.the z-score in 2006 is double the 2005 score. the z-score has increased sharply, which suggests the company has greatly increased the risk of bankruptcy.the z-score in 2006 is half of the 2005 score. the z-score has decreased sharply, which suggests the company is in financial distress.the z-score in 2006 is double the 2005 score. the z-score has increased sharply, which suggests the company has greatly lowered the risk of bankruptcy.

In a transportation minimization problem, the negative improvement index associated with a cell indicates that reallocating units to that cell would lower costs.truefalse