Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 3
B. 
C. 
D. 
Answer: D
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State whether the graph is that of an arithmetic sequence or a geometric sequence.
A. Geometric B. Arithmetic
Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve 
to the curve 
A. 
?2
B. 
?2
C. 81?
D. 81?2
Fill in the digits for the given place values in the following whole number.7,838,737,338billions millions
A. Billions 7, millions 8 B. Billions 8, millions 3 C. Billions 8, millions 7 D. Billions 8, millions 8
Solve for the missing values. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest day.Principal: $3743Interest: 
Rate: 9.8%Time: 217 daysMaturity value: 
A. $208.03; $3951.03 B. $224.22; $3967.22 C. $228.13; $3971.13 D. $221.11; $3964.11