Find the domain of the function.g(x) = 
A. (-?, 4) ? (4, ?)
B. (-?, 7) ? (7, ?)
C. (-?, ?)
D. (-?, -7) ? (-7, ?)
Answer: D
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Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 3ab
B. 3
C. -3a2b
D. 3ab
Provide an appropriate response.The rafters of a house make a 30° angle with the joists. If the rafters have a 20-in. overhang and the center of the roof is 12 ft above the joists, how long must the rafters be cut? 
A. 25 ft 8 in. B. 21 ft 8 in. C. 24 ft 8 in. D. 26 ft
Provide an appropriate response.What is wrong with adding decimal numbers in the following example?25 + 0.13 = 0.38
What will be an ideal response?
Combine like terms. Then write the polynomial in descending order of powers.-9z5 + 6z6
A. -3z11 B. 6z6 - 9z5 C. -3z5 D. -3z6