Solve the problem.A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius of 11 feet. How far does the skater go one time around the figure eight? Use 3.14 for ?. Round your answer to the nearest tenth.
A. 138.2 ft
B. 32.5 ft
C. 34.5 ft
D. 69.1 ft
Answer: A
Mathematics
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Solve using matrices. x + 7y = -23x + y = 34
A. (3, 7) B. (12, -2) C. (7, 12) D. (-2, 3)
Mathematics
Solve the problem.Pennies are packaged 50 in a roll. A mother broke open some rolls of pennies. She gave her son 
and she had 21 pennies left over. How many rolls of pennies did she break open?
A. 7 rolls B. 6 rolls C. 4 rolls D. 5 rolls
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Mathematics