Solve the problem.A retail store had monthly sales of $61,400 and spent 20% of it on promotions. How much was spent on promotions?
A. $122,800
B. $307,000
C. $30,700
D. $12,280
Answer: D
Mathematics
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Find the intersection.x + y + z = 5, x + y = -3
A. x = -t, y = -3 + t, z = 8 B. x = -1, y = 1 - 3t, z = 8t C. x = t, y = -3 - t, z = 8 D. x = -t, y = -3 + t, z = -8
Mathematics
Find the rational number halfway between the two given rational numbers.-8, - 
A. - 
B. - 
C. - 
D. - 
Mathematics
Provide an appropriate response.Graph y = sin-1(sin x). Explain why the graph looks like it does.
What will be an ideal response?
Mathematics
Solve using the substitution method. 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.4x - 1 = yy - 4x = 3
A. (4, 1) B. (0, 0) C. {(x, y)|4x - 1 = y} D. No solution
Mathematics