Is it just me or does math suck?

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.

Nominal gross domestic producta. is a measure of the overall level of pricesb. measures the value of final goods and services produced within the borders of a given country during a given time period using current pricesc. measures the value of final goods and services produced within the borders of a given country during a given time period corrected for changing pricesd. only changes when the level of output changes

Maria am corporation uses the weighted-average method in its process costing system. the baking department is one of the processing departments in its strudel manufacturing facility. in june in the baking department, the cost of beginning work in process inventory was $4,880, the cost of ending work in process inventory was $1,150, and the cost added to production was $25,200. required: prepare a cost reconciliation report for the baking department for june.