Starting from the same place, anaad walks due west and cala walks due east. on the number line, 0 represents their starting point; negative values represent the distance in feet, traveled west; and positive values represent the distance in feet, traveled east. the figure shows a number line. there are 10 tick marks to the left of 0 and 10 tick marks to the right of 0. the tenth tick mark to the left of 0 is labeled negative 700, and the tenth tick mark to the right of 0 is labeled 700. the seventh tick mark to the left of 0 is labeled anaad, and the eighth tick mark to the right of 0 is labeled cala. how many feet apart are anaad and cala on the number line?