Solve the equation.12x + 27 = 3x - 9
A. {1}
B. {-4}
C. {-1}
D. {4}
Answer: B
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Evaluate the integral.
A. 
B. 
C. 
D. 
Solve.The sum of the squares of the digits of a positive two-digit number is 20, and the tens digit is 2 more than the units digit. Find the number.
A. 42 B. 35 C. 24 D. 53
Solve the problem.Find the Fahrenheit temperature when the Celsius temperature is 90° C.
A. 
°F
B. 162 °F
C. 194 °F
D. 122 °F
Solve the problem.A function that models the population (in thousands) of children under the age of 18 in a certain town, t years after 2010 is C(t) = 0.0013t2 - 0.163t + 15.82. A function that models the population (in thousands) of adults aged 18 or over of the same town, t years after 2010 is 
Find the equation of a function that models the estimated population of the town t years after 2010.
A. P(t) = 0.0076t2 - 0.38t + 9.26 B. P(t) = 0.0076t2 - 0.054t + 40.9 C. P(t) = 0.0063t2 + 0.0013t + 40.52 D. P(t) = 0.0076t2 - 0.38t + 40.9