Write the expression as a logarithm of a single expression. Assume that variables represent positive numbers.logbx - logby
A. logb
B. log2b
C. logbx - y
D. logb
Answer: D
Mathematics
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Use radical notation to write the expression. Simplify if possible.(7x)2/7
A. 
B. 7
C. 
D. 
Mathematics
Solve the problem.During the first four months of the year, Jack earned 
and 
If Jack must have an average salary of at least 
in order to earn retirement benefits, what must Jack earn in the fifth month in order to qualify
for benefits? A. at least $950 B. at most $1020 C. at least $1370 D. at most $933
Mathematics
Solve the problem.A circular fountain has a diameter of 7 feet. Approximate the perimeter of the fountain, using 3.14 as an approximation for 
A. 43.96 ft B. 153.86 ft C. 21.98 ft D. 10.99 ft
Mathematics
Multiply. Simplify, if necessary.
? 
A. 
B. 54
C. 
D. 
Mathematics