Evaluate the expression using the properties of real numbers.- 
? 
? 3
A. - 1
B. - 
C. 
D. - 
Answer: B
Mathematics
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Solve the problem.Assume that math SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. If you scored 560, what percentage of those taking the test scored below you?
A. 51.99% B. 27.43% C. 72.57% D. 0.60%
Mathematics
Identify the curve as simple, closed, both, or neither.
A. Closed B. Neither C. Both D. Simple
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
+ 
A. 4
B. 5
C. 
D. 
Mathematics
Determine which fractions are improper.
, 
, 
, 
, 
A. 
, 
, 
, 
, 
B. 
, 
C. 
, 
, 
, 
D. 
, 
, 
Mathematics