Solve. Write a mixed numeral for the answer.Derek spent 5
hours studying for his math exam and another 4
hours doing his math homework. How long did he spend on math in total?
A. 10
hr
B. 10 hr
C. 9
hr
D. 9
hr
Answer: A
Mathematics
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Find the indicated vector.Let u = 
. Find 8u.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The number of births in County A has been increasing in recent years. Use the information given in the bar graph for the years 1960 and 1990, letting x = 0 represent the year 1960 and letting y represent the number of births. Use the graph to estimate the number of births in 1970.
A. 1900 B. 1825 C. 1850 D. 1950
Mathematics
Plot each number on a number line.250, -50, 200, -100
A. 
B. 
C. 
D. 
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Provide an appropriate response.Multiply: 102 × 703
A. 7,446 B. 409 C. 71,706 D. 8,436
Mathematics