Provide an appropriate response.Identify the greatest common factor (GCF) of 2x2 + 4x.
A. 2
B. 4x
C. x
D. 2x
Answer: D
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Tell whether the expression is a polynomial. If it is, give its degree.1 - 8x
A. Polynomial; degree 1 B. Polynomial; degree -8 C. Polynomial; degree 8 D. Not a polynomial
Solve the problem.The temperature of water in a certain lake on a day in October can be determined by using the model 
where x is the number of feet down from the surface of the lake and y is the Celsius temperature of the water at that depth. Based on this model, at what depth is the water 9 degrees? (Round to the nearest foot.)
A. 67 ft B. 12 ft C. 45 ft D. 30 ft
For a box, its height is 4 feet and its volume is 192 
. If the length of the rectangular base is 2 feet more than the width of the base, find the width of the base.
A. 6 ft B. 8 ft C. 12 ft D. 16 ft
Determine the domain and the range of the given relation.
A. domain: {x|-2 ? x ? 2}; range: {y|-3 ? y ? 3} B. domain: {x|x is a real number}; range: {y|y is a real number} C. domain: {x|-3 ? x ? 3}; range: {y|-2 ? y ? 2} D. domain: {x|x ? 3 or x ? -3}; range: {y|y ? 2 or y ? -2}