Solve the problem.Ellen sells $540 worth of clothes and earns $32.40 in commission. What is her commission rate?
A. 7%
B. 8%
C. 0.6%
D. 6%
Answer: D
Mathematics
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Express the number in scientific notation.2500
A. 2.5 × 10-2 B. 2.5 × 10-3 C. 2.5 × 103 D. 2.5 × 102
Mathematics
Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 9; 180° B. 3; 270° C. 3; 90° D. 3; 180°
Mathematics
Add or subtract. Simplify by combining like radical terms, if possible. Assume all variables and radicands represent nonnegative numbers.2
+ 7
A. -16
B. 9
C. 16
D. 12
Mathematics
For the pair of vectors, find 
.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics