Use the tables to evaluate the expression if possible.Find (g ? g)(4).  

A. 9
B. 19
C.

21?

D. 7


Answer: D

Mathematics

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Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 791. Find a linear function S(t), which fits this data, and which expresses score as a function of time.

A. S(t) = 3.8475t - 495.75 B. S(t) = -4.275t + 491.75 C. S(t) = 3.8475t + 495.75 D. S(t) = 4.275t + 491.75

Mathematics

Solve the system using Gaussian elimination.    

A. {(6, 7, 9)} B. ? C. {(-6, 9, 12)} D. {(6, 9, 7)}

Mathematics

To build social capital, effective strategic leaders have well-developed

A. negotiation skills. B. organizational skills. C. relational skills. D. planning skills.

Mathematics

Solve the problem.A vendor sells hot dogs and bags of potato chips. A customer buys 5 hot dogs and 2 bags of potato chips for $10.75. Another customer buys 4 hot dogs and 2 bags of potato chips for $9.00. Find the cost of each item.

A. $1.75 for a hot dog; $1.25 for a bag of potato chips B. $1.75 for a hot dog; $1.00 for a bag of potato chips C. $1.00 for a hot dog; $1.75 for a bag of potato chips D. $2.00 for a hot dog; $1.25 for a bag of potato chips

Mathematics