Express using positive exponents. Then simplify.
A. x-m
B. mx
C. xm
D. 
Answer: C
Mathematics
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Solve the problem.Place the numbers 8, 9 10, 11, and 12 in the circles to make the sum across equal to the sum vertically. 
Which numbers can be placed in the center circle?
A. 8, 10, and 12 B. 10, 11, and 12 C. 8, 9, and 10 D. 9, 10, and 11
Mathematics
Find the indicated intersection or union.{q, s, u, v, w, x} ? ?
A. {q} B. ? C. {q, s, u, v, w} D. {q, s, u, v, w, x}
Mathematics
Perform the indicated operation.35 cm - 25 mm (in centimeters)
A. 10 cm B. 325 cm C. 34.75 cm D. 32.5 cm
Mathematics
Evaluate the expression. Write your answer without negative exponents.-23
A. -6 B. 8 C. -8 D. 6
Mathematics