Add the integers.-10 + (-18)
A. -8
B. 8
C. -28
D. 28
Answer: C
Mathematics
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Evaluate the factorial expression.
A. 2!
B. 
C. 
D. 30
Mathematics
Evaluate the expression for other given values of the variables.3x for x = 7
A. 7 B. 3 C. 10 D. 21
Mathematics
Choose the most reasonable unit of measure.Area of a cross-section of a drinking glass: 21 
(mm2, cm2, m2, km2)
A. cm2 B. m2 C. mm2 D. km2
Mathematics
Solve the problem.A circular pond is being installed in the corner of a yard, as shown. The installer needs to know the value of x in feet. Find x to the nearest tenth of a foot. 
?15 ft
A. 4.6 ft B. 4 ft C. 3.7 ft D. 4.4 ft
Mathematics