Insert parentheses, if needed, to make the expression on the left equal to the number on the right.-4 + 18 ÷ 7 - 20 = -18
A. -4 + 18 ÷ (7 - 20) = -18
B. -4 + 18 ÷ 7 - 20 = -18
C. (-4 + 18) ÷ 7 - 20 = -18
D. (-4 + 18) ÷ (7 - 20) = -18
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Find the expected value.Suppose you pay $1.00 to roll a fair die with the understanding that you will get back $3.00 (and your wager) for rolling a 2 or a 3, nothing otherwise. What is your expected net winnings?
A. $1.00 B. $0.00 C. $3.00 D. -$1.00
Mathematics
Convert to logarithmic form.2-3 = 
A. log-3
= 2
B. log1/82 = -3
C. log2-3 = 
D. log2
= -3
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Write the number of inches indicated by the arrow as an improper fraction.
A. 
B. 
C. 
D. 
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