Add or subtract as indicated. Simplify the result if possible. If an answer is an improper fraction, write it as a mixed number.
+ 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Perform the indicated operation.
(
- 
)
A. 3
+ 3
B. 12
C. 6
D. 
- 
Mathematics
Factor out the GCF from the polynomial.60x + 15
A. 5(12x + 3) B. 15(4x + 1) C. 15(4x) D. 3(20x + 5)
Mathematics
Solve the problem.Conservationists tagged 80 black-nosed rabbits in a national forest in 1990. In 1993, they tagged 160 black-nosed rabbits in the same range. If the rabbit population follows the exponential law, how many rabbits will be in the range 5 years from 1990?
A. 243 B. 254 C. 121 D. 508
Mathematics
Tell whether the angle is acute, right, obtuse, or straight.
A. Right B. Acute C. Obtuse D. Straight
Mathematics