Solve the equation.
- 
= 1
A. {3}
B. {-3, -1}
C. {3, -1}
D. ?
Answer: C
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Solve the problem.Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales, and 7% of all sales over $3,000. Find Stephanie's gross pay for the month if her sales were $9,880.
A. $1,506.60 B. $2,781.60 C. $1,296.60 D. $646.60
Find parametric equations for the line described below.The line through the point P(-6, 5, 0) and perpendicular to the plane 
A. x = -2t - 6, y = -2t - 6, z = 0 B. x = 5t + 6, y = -2t - 5, z = -3t C. x = -5t + 6, y = 2t - 5, z = 3t D. x = -5t - 6, y = 2t + 5, z = 3t
Solve the absolute value equation.|7x + 3| + 2 = 7
A. x = 
, - 
B. no solution
C. x = 
, - 
D. x = - 
, 
Solve the problem.How many different vertical arrangements are there of 7 flags if 4 are white, 2 are blue, and 1 is red?
A. 14 B. 105 C. 35 D. 8