Find the opposite of the real number.-30
A. -30
B. - 
C. 30
D. 
Answer: C
Mathematics
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Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.Sales at a local ice cream shop went up 20% in 5 years. If 18,000 ice cream cones were sold in the current year, find the number of ice cream cones sold 5 years ago. (Round to the nearest integer, if necessary.)
A. 90,000 ice cream cones B. 15,000 ice cream cones C. 14,400 ice cream cones D. 3600 ice cream cones
Mathematics
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Mathematics
Simplify the exponential expression.
-5
A. 
B. 
C. 
D. 
Mathematics
Find a and b.If 2 < x < 9, then a < 1 - 2x < b.
A. a = -3, b = -17 B. a = 19, b = 5 C. a = 5, b = 19 D. a = -17, b = -3
Mathematics