Evaluate.
48
Mathematics
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Do the operation and express the answer in 
form.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve and give interval notation for the solution set. Then graph the solution set.5x < 20 or x + 2 ? 9
A. (-?, 7]
B. (-?, 4) ? [7, ?)
C. (4, ?)
D. (-?, -7] ? (4, ?)
Mathematics
Write an inequality to describe the situation.The number of people n at the concert is less than 881.
A. n ? 881 B. n < 881 C. n > 881 D. n ? 881
Mathematics
Write the statement as a proportion. ? 99 people is to 90 chairs as 11 people is to 10 chairs ?
A. 
B. 
C. 
D. 
E. 
Mathematics