Translate into an equation, then solve.Bob works as a salesman. He was told that he will get a bonus if he has 
in sales over a four-week period. The first week his sales were 
The second week his sales were $1820. The third week his sales were 
How much must Bob sell during the final week to get the bonus?
A. 2380 + 1820 + 3185 = x + 12,120; Bob must have sales of 
B. 2380 + 1820 + 3185 + x = 12,120; Bob must have sales of 
C. 2380 + 1820 + 3185 - x = - 12,120; Bob must have sales of 
D. 2380 + 1820 + 3185x = 12,120; Bob must have sales of 
Answer: B
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Solve the equation.
= 
A. 2, 5 B. 0, 5 C. 4, 6 D. 5, 6
Solve the inequality and write the solution set in interval notation.
t ? - 12
A. (-?, -16] B. (-?, 16] C. [-16, ?) D. [16, ?)
Find an equation for the ellipse described.Center at (0, 0); focus at (-2, 0); vertex at (6, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Use the substitution method to solve the system of linear equations. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.a + 3b = 13a = -9b + 3
A. (3, 1) B. {(a, b) | a + 3b = 1} C. {(a, b) | a = 3b + 1} D. No solution