Simplify the algebraic expression by collecting and combining like terms.
+ 
A. 
x - 
B. 
x + 
C. 
x - 
D. 
x - 
Answer: D
Mathematics
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Solve the problem.The diameter of a tree was 8 in. During the following year, the circumference increased 
About how much did the tree's diameter increase? (Leave your answer in terms of ?.)
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Mathematics
Evaluate the expression.-73
A. 21 B. -21 C. -343 D. 343
Mathematics
Find the missing length to the nearest tenth.
A. b = 3.0 ft B. b = 16.2 ft C. b = 13.7 ft D. b = 94.5 ft
Mathematics
Solve. Round the answers as indicated.0.1x2 - 0.2x - 0.10 = 0, round to the nearest thousandth
A. 4.317 B. -2.317, 4.317 C. -1.317, 5.317 D. -1.317
Mathematics