Graph the inequality.x + y < -4
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.The formula 2n gives the number of subsets for a set where n is the number of elements in the set. How many subsets can be formed with set A = {1, 2, 3}? List all those subsets.
What will be an ideal response?
Solve the problem.It costs $400 to start up a business of selling hot dogs. Each hot dog costs 
to produce. Find the cost function C(x) = mx + b whose input is the number of hot dogs and whose output is the total cost.
A. C(x) = 55x + 400 B. C(x) = 400x + 0.55 C. C(x) = 0.55x + 400 D. C(x) = 0.55x - 400
Solve the equation.
x - 
x = 2
A. -30 B. -60 C. 60 D. 30
Write the augmented matrix for the system. 9x - 4y = 9 8y - 2z = -5 -5z = 9
A. 
B. 
C. 
D. 