Which of the following contributed most significantly to the population trend in pre-columbian mexico described in the excerpt?
migration in pursuit of fertile lands
a. trade and settlement resulting from maize cultivation
b. low birth rates and high death tolls as a result of european diseases
c. internal conflict between groups causing political instability

Ronald works for a small biotech firm. when the firm presents the results of its clinical trials to the fda, ronald realizes that the results are not accurate. he reports this to the fda. ronald is a(n)

Exercise 4-6 the following balances were taken from the books of alonzo corp. on december 31, 2017. interest revenue $86,000 accumulated depreciation—equipment $40,000 cash 51,000 accumulated depreciation—buildings 28,000 sales revenue 1,380,000 notes receivable 155,000 accounts receivable 150,000 selling expenses 194,000 prepaid insurance 20,000 accounts payable 170,000 sales returns and allowances 150,000 bonds payable 100,000 allowance for doubtful accounts 7,000 administrative and general expenses 97,000 sales discounts 45,000 accrued liabilities 32,000 land 100,000 interest expense 60,000 equipment 200,000 notes payable 100,000 buildings 140,000 loss from earthquake damage 150,000 cost of goods sold 621,000 common stock 500,000 retained earnings 21,000 assume the total effective tax rate on all items is 34%. prepare a multiple-step income statement; 100,000 shares of common stock were outstanding during the year. (round earnings per share to 2 decimal places, e.g. 1.48.)

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)