Solve.
= 
A. x = 72
B. x = 15
C. x = 20
D. x = 1
Answer: B
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Provide an appropriate response.A certain country is manufacturing a network of wind turbines to be completed in seven years. The total number of wind turbines in the network will be seven less than three times the number expected to be operational by the end of this year. Let n = the number of wind turbines in the network by the end of this year. Express the number of wind turbines in the completed network in terms of n.
A. 7n + 3 wind turbines B. 3n - 7 wind turbines C. 7n - 3 wind turbines D. 3n + 7 wind turbines
Complete.6000 lb = 
T
A. 2
B. 4
C. 3
D. 3
Solve.Four times a number, added to 7, is 43. Find the number.
A. 144 B. 36 C. -9 D. 9
Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.A die is rolled. The set of equally likely outcomes is {1, 2, 3, 4, 5, 6}. Find the probability of getting a 5.
A. 0
B. 5
C. 
D. 