我和马克是好朋友。 我们是上了中学以后才认识的。 马克是一个中…

我和马克是好朋友。 我们是上了中学以后才认识的。 马克是一个中英混血儿。 他爸爸是中国人,妈妈是英国人。 马克挺高的,有一米八(1.80米),比我高一头。 他的皮肤白白的,眼睛大大的。 他长了一头黑色的卷发。 我们平时在学校一起上课,一起玩儿游戏。 我们都喜欢踢足球。   Question:马克的爸爸是哪国人?

Assume that Pottery Barn decides to adjust their price sligh…

Assume that Pottery Barn decides to adjust their price slightly a few months from now by increasing the current price (found in the table just below the scenario text) by $225.  In response, assume that demand for their sofas decreased by 4 units during that month from their original monthly unit sales (also in the table just below the scenario text).  Based on all of this information, calculate the price elasticity of demand for these sofas.    As a summary: Old Price = $975; New Price = $1,200 Old Quantity = 32; New Quantity = 28