Solve the problem.Ken and Kara are 35 miles apart on a calm lake paddling toward each other. Ken paddles at 4 miles per hour, while Kara paddles at 7 miles per hour. How long will it take them to meet?
A. 24 hr
B. 3
hr
C. 11
hr
D. 2
hr
Answer: B
Mathematics
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Identify if the whole number is prime or composite.42
A. Composite B. Prime
Mathematics
Solve the problem.A group of teachers order markers for their classrooms. The bill was $3.91. If the original price per marker was 17¢ and the price has risen, how much does each marker cost now?
A. 22¢ B. 23¢ C. 24¢ D. 21¢
Mathematics
Perform the indicated operations and simplify the result.
+ 
+ 
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression using order of operations.
A. - 
B. - 
C. - 
D. - 
Mathematics