Simplify the expression.
A. 18x + 6
B. 3x + 6
C. 3x - 6
D. 3x + 36
Answer: B
Mathematics
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Make a sketch of the population function (as a function of time) that results from the given growth rate function. Assume the population at time t = 0 begins at some positive value.
A. 
B. 
C. 
D. 
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Solve the problem.A formula for the focal length of a lens is f = 
. Calculate f (the focal length) for a = 14 cm and 
Round to the nearest tenth.
A. 6.7 cm B. 6.5 cm C. 7.3 cm D. 7.0 cm
Mathematics
Complete the factoring.x2 - 3x - 28 = (x + 4)( )
A. x - 7 B. -x - 7 C. 7 - x D. x + 7
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Solve. Simplify the answer.A painter used 5
gallons of paint to paint the front of a house and another 5
gallons to paint the back. How much paint did he use in total?
A. 10
gal
B. 11
gal
C. 10
gal
D. 10
gal
Mathematics