Simplify the expression using the order of operations.7 ? 9 - 4
A. 35
B. 252
C. 67
D. 59
Answer: D
Mathematics
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Solve the problem.Suppose the current cost of gasoline is $3.23 per gallon. Find the current price index using the 1995 price as the reference value. In 1995, the cost of gasoline was 120.5 cents per gallon.
A. 2.7 B. 268 C. 37.3 D. 202.5
Mathematics
Write the sum in summation notation.
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Mathematics
Find the probability. Round to the nearest ten-thousandth when necessary.A family has five children. The probability of having a girl is 1/2. What is the probability of having at least 3 boys?
A. 0.5 B. 0.4688 C. 0.1563 D. 0.3125
Mathematics
Find the equivalent earnings.Roger earns $12,272 a year. How much does he earn in a month?
A. $1227.20 B. $236.00 C. $1022.67 D. $511.33
Mathematics