Solve the problem.Use the formula P = 4s to find the perimeter of a square with side length 21 centimeters.
A. 84
B. 42
C. 63
D. 89
Answer: A
Mathematics
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Perform the indicated operations.8 ? (-1)2
A. -8 B. 8 C. 16 D. -16
Mathematics
Solve the given equation without using a graphing calculator.9x5 + 9x4 - 82x3 - 82x2 + 9x + 9 = 0
A. -1, -3, 3, -1/3, 1/3 B. 1, 3, -3, 1/3, 1/3 C. 1, 3, -3, 3, -1 D. -1, 3, -3, 3, -3
Mathematics
Solve the problem.The sum of the ages of Art, Ben, and Cal is 59. Art is 1 year older than Cal and Cal is 1 year younger than Ben. Which of these people were teenagers 7 years ago?
A. Art and Ben B. Art C. Art, Ben, and Cal D. Ben
Mathematics
Perform the indicated operations and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics