Determine whether the two pairs of numbers are proportional.2, 9 and 4, 18
A. No
B. Yes
Answer: B
Mathematics
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Simplify the expression. If any variables are present, assume that they are positive.
A. 
B. 2xy
C. 4
D. 2
Mathematics
Solve the problem.After one round in a card game, your score was 34 points. After the second round, your score was -15 points. How many points did you score in the second round?
A. 19 points B. -49 points C. 15 points D. -19 points
Mathematics
Solve the problem.Write 310 out of 500 war veterans as a reduced fraction and as a percent.
A. 
, 620%
B. 
, 620%
C. 
, 62%
D. 
, 6.2%
Mathematics
Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.-2431/5
A. -27 B. -3 C. 243 D. 81
Mathematics