Simplify.[47 + (-7)] ÷ (-5)
A. 
B. 35
C. -8
D. 8
Answer: C
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Mathematics
Simplify.13 + (-4) - (-8)
A. 17 B. -17 C. 9 D. 1
Mathematics
Find the solution or solutions, if any exist, to the system.
A. x = -1, y = 1, z = 1 B. x = 1, y = -1, z = 1 C. x = 0, y = 0, z = 1 D. x = 0, y = 1, z = 0
Mathematics
Convert. When necessary, round the answer to two decimal places.4 miles = _____ yards
A. 21,120
B. 
C. 4000
D. 7040
Mathematics