11w-12z is equivalent to 7w-7z+4w-5z.
Answer:

Step-by-step explanation:
<em>The formula for converting °F to °C is: </em>
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We are given the temperature of 99°F.
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<em>Diane's temperature in Celsius is 37.22...°C.</em>
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The 2 is recurring.
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<em>Hope this helps! </em>
Never, because intersecting means crossing over.
~IndexFinger :)
The missing word is:
exponent