In a psychology class, 60 students have a mean score of 96.9 on a test. Then 19 more students take the test and their mean score is 71.3. What is the mean score of all of these students together? Round to one decimal place.
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If the measure of xyz is 81 what is the measure of yz

Which of these triangle pairs can be mapped to each other using a single translation? cof hn

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)