Solve the problem.A television offer advertised a set of knives for $20 down and $8 a month for 12 months. What is the total cost of the knives?
A. $96
B. $126
C. $116
D. $106
Answer: C
Mathematics
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Perform the indicated operation. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Write the solution set in interval notation and graph it.2 ? 3t - 4 ? 17
A. (2, 7)
B. (-7, -2)
C. [-7, -2]
D. [2, 7]
Mathematics
Solve the problem.A certain radioactive isotope has a half-life of approximately 1250 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 70% of that amount?
A. 2171 yr B. 375 yr C. 643 yr D. 573 yr
Mathematics
Use the substitution method to solve the system. x - 5y = -389x - 6y = -69
A. (-4, 8) B. (3, 8) C. (-3, 7) D. No solution
Mathematics