Demand for Crude Oil. The marginal cost of producing crude oil is zero. If the crude oil industry is a monopoly, the price of crude oil will be , the total quantity of crude oil produced by the monopoly will be barrels, and the monopoly will earn revenue equal to . $160; 0; $0 $60; 100; $6,000 $80; 80; $6,400 $80; 80; $0

Juan has a retail business selling skateboard supplies he maintains large stockpiles of every item he sells in a warehouse on the outskirts of town he keeps finding that he has to reorder certain supplies all the time but others only once a year how can he solve this problem?

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.

Gamegirl inc., has the following transactions during august. august 6 sold 76 handheld game devices for $230 each to ds unlimited on account, terms 2/10, net 60. the cost of the 76 game devices sold, was $210 each. august 10 ds unlimited returned six game devices purchased on 6th august since they were defective. august 14 received full amount due from ds unlimited. required: prepare the transactions for gamegirl, inc., assuming the company uses a perpetual inventory syste