Which statement is true about the function f(x)= StartRoot x EndRoot?

A)The domain of the graph is all real numbers.
B)The range of the graph is all real numbers.
C)The domain of the graph is all real numbers less than or equal to 0.
D)The range of the graph is all real numbers greater than or equal to 0.

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

Which expression is equivalent to 2x^2+7x+4?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.