Solve and graph. Write the solution set in interval notation.3x + 3 ? 12 and 3x - 9 ? 3
A. [4, ?)
B. [3, ?)
C. (-?, 3] ? [4, ?)
D. [3,4]
Answer: A
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Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Perform the given operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} (U represents the universal set).
?
?
A. 
B. 
C. 
D. 
E. 
Perform the conversion.0.0083 kL = ___ mL
A. 830 B. 8300 C. 0.083 D. 8.3
The Sandersons are planning to refinance their home. The outstanding principal on their original loan is $90,000 and was to be amortized in 264 equal monthly installments at an interest rate of 11%/year compounded monthly. The new loan they expect to secure is to be amortized over the same period at an interest rate of 7.2%/year compounded monthly. How much less can they expect to pay over the life of the loan in interest payments by refinancing the loan at this time? Round your answer to the nearest cent.
$__________