Well the answer to x would be 7 if you take one x from ad since there is only one x in cd then you would have x + 3 which means you basically just got to get to ten and 7 + 3 is 10
The answer is Johannesburg from south Africa
Hope this helps:)
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Nitrogen (N), nonmetallic element of Group 15 [Va] of the periodic table. It is a colourless, odourless, tasteless gas that is the most plentiful element in Earth's atmosphere and is a constituent of all living matter. Boiling point: −195.8 °C (−320.4 °F)
Atomic number: 7 has five electrons in its outer shell, so it is trivalent in most compounds. Nitrogen is important for plant growth and can be 'fixed' by lightning or added to soils in fertilisers. A colourless, odourless gas. Nitrogen is important to the chemical industry. It is used to make fertilisers, nitric acid, nylon, dyes and explosives.
Heat energy would be the fuel for a hurricane. Also the warmer the water is, there is more moisture in the air, which can lead to even larger and stronger hurricanes
