Let

be the length of the rectangle and

be the width. In the problem it is given that

. It is also given that the area

. Substituting in the length in terms of width, we have

. Using the zero product property,

. Solving these we get the width

. However, it doesn't make sense for the width to be negative, so the width must be

. From that we can tell the length

.
The domain is all of the possible x values, and there are none less than -3 in this case, so the answer is B, which shows that x must be greater than or equal to -3.
Answer:
B $12.69
Step-by-step explanation:
Divide 84.63 by 100 to get 1% of the bill and then multiply the answer by 15 for 15% and round it:
The closest answer would be B $12.69.