Write the equation in its equivalent logarithmic form.72 = x
A. logx 7 = 2
B. log7 2 = x
C. log2 x = 7
D. log7 x = 2
Answer: D
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Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 
B. 
C. 
D. 
Solve the problem. Round to the nearest hundredth, if necessary.Assume that the mean length of a human pregnancy is 268 days with a standard deviation of 9 days. What percentage of human pregnancies do we expect to last no more than 261 days?
A. 21.77% B. 22.66% C. 19.22% D. 21.19%
Solve the problem.Wing Ah averages 33 miles per gallon of gasoline in her car. How far can she travel on 11 gallons of gasoline?
A. 363 miles B. 373 miles C. 44 miles D. 54 miles
Guess the rule used to change one number into another.
A. 4n + 3 B. 3n + 1 C. 2n + 7 D. None of the above is the correct rule.