Answer:
right-click the tab, point to Tab Color and pick a color that you want. Tip: Click away from the formatted tab to see the new tab color. If you want to remove the color, right-click the tab, point to Tab Color, and pick No Color
Answer:
-1 ans +2 are the pair of integers whose sum is 0.
Are you going into space... if so well... space, that is the big issue
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