Determine the domain of the expression. Write the domain in interval notation.
A. (-?, 4) ? (4, ?)
B. (-?, 7) ? (7, ?)
C. (-?, -7) ? (-7, ?)
D. (-?, ?)
Answer: C
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Determine the truth value for the compound statement given that p is a true statement, q is a true statement, and r is a false statement. q ? p
A. True B. False
Provide an appropriate response.Perform the indicated operation and simplify: 
Fill in the blank(s) with the appropriate word(s).
Solve the problem.The population of a small country increases according to the function 
where t is measured in years. How many people will the country have after 3 years?
A. 3,054,622 B. 2,654,591 C. 7,033,527 D. 2,870,384
Solve the problem.Find out how long it takes a $3200 investment to double if it is invested at 
compounded semiannually. Round to the nearest tenth of a year. Use the formula 
.
A. 8.8 years B. 8.6 years C. 9.2 years D. 9 years