Solve the problem.Ellen sells $280 worth of clothes and earns $22.40 in commission. What is the commission rate?
A. 9%
B. 8%
C. 10%
D. 0.8%
Answer: B
Mathematics
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Find 
by using the Chain Rule. Express your final answer in w = 
; x = cos s2t, y = sin s2t, z = s2t2
A. 
B. 
C. 
D. 
Mathematics
Round as indicated.2172 to the nearest hundred
A. 2190 B. 2200 C. 2300 D. 2100
Mathematics
Find the value of r and determine if a correlation exists at the indicated level of significance.
?? = 0.05
A. r = -0.9293; Correlation exists. B. r = -0.9293; Correlation does not exist. C. r = -0.9529; Correlation does not exist. D. r = -0.9529; Correlation exists.
Mathematics
Solve the problem.If a graph is symmetric with respect to the y-axis and it contains the point (5, -6), which of the following points is also on the graph?
A. (-5, -6) B. (5, -6) C. (-5, 6) D. (-6, 5)
Mathematics