Can someone me ? i’ll mark the best answer brainliest : )

Which of the following is not a potential problem with beta and its estimation? sometimes, during a period when the company is undergoing a change such as toward more leverage or riskier assets, the calculated beta will be drastically different than the "true" or "expected future" beta. the beta of "the market," can change over time, sometimes drastically.

The following data pertains to activity and costs for two months: june july activity level in 10,000 12,000 direct materials $16,000 $ ? fixed factory rent 12,000 ? manufacturing overhead 10,000 ? total cost $38,000 $42,900 assuming that these activity levels are within the relevant range, the manufacturing overhead for july was: a) $10,000 b) $11,700 c) $19,000 d) $9,300

Which type of market are you in if your company, along with three other companies, controls 95 percent of the total music industry?