Fill in each blank so that the resulting statement is true. The circumference, C, of a circle with radius r is given by the formula ____.

The circumference, $C$, of a circle with radius $r$ is given by the formula_________.

Fill in the blank with an appropriate word, phrase, or symbol(s). Two sets that contain the same elements are called _ sets.

Fill the blank with the term that correctly complete the sentence. _______ refers to a couple's recognition that they are "in love" and want to be together, "for better or for worse."

Fill in each blank so that the resulting statement is true. The amplitude of $y=\frac{1}{2} \cos 3 x$ is ____ and the period is ____.

Fill in each blank so that the resulting statement is true. In the rectangular coordinate system, the vertical number line is called the ____.

Fill in the blank with an appropriate word, phrase, or symbol(s). A list of all possible outcomes of an experiment is called a(n) _ space.

Fill in each blank so that the resulting statement is true. One kilogram of water has a volume of ____ liter(s).

Fill in each blank so that the resulting statement is true. The product of a nonzero real number and its ____ gives 1, the ____.

Fill in the blank(s) to correctly complete each sentence. The graph of the line y=-2x+7 has slope ____ and y-intercept ____.

Fill in the blank with the term that best completes the following sentence. Each element is made up of only one kind of ___________

Fill in each blank so that the resulting statement is true. The area, A, of a rectangle with length l and width w is given by the formula ____.

Fill in the blank with an appropriate word, phrase, or symbol(s). An equation that typically has a real-life application is called a(n) _.

Fill in each blank so that the resulting statement is true. Lines that intersect at an angle of $90^{\circ}$ are called ____ lines.