Solve the problem.Jim has gotten scores of 87 and 85 on his first two tests. What score must he get on his third test to keep an average of 80 or better?
A. at least 86
B. at least 68
C. at least 84
D. at least 66
Answer: B
Mathematics
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Perform the indicated operations.(x - 11y)(x - 4y)
A. x2 - 15xy - 15y2 B. x2 - 15xy + 44y2 C. x - 15xy + 44y D. x2 - 18xy + 44y2
Mathematics
Use roster notation to write the set.The natural-number multiples of 7 greater than 20 and less than 106
A. {28, 35, ..., 105} B. {20, 106} C. {21, 28, 35, ..., 105} D. {21, 35, ..., 105}
Mathematics
Find the mean.75, 87, 59, 83, 56
A. 60 B. 72 C. 75 D. 87
Mathematics
Find the book value to the nearest dollar.Cost $7,090, life 6 years, scrap value $780 at the end of 3 years using double-declining balance method
A. $2,101 B. $4,432 C. $2,650 D. $4,103
Mathematics