Simplify the difference. (-7x - 5x4 + 5) - (-7x4 - 5 - 9x)

A) - 14x4 + 10x + 10

B) 2x4 + 2x + 10

C) - 14x4 - 10x + 10

D) 2x4 + 2x + 8

Ian has 12.2 ounce bottle of ketchup. He uses 1/20 of the ketchup every time he has a buffalo burger. How many ounces of ketchup are left after Ian has eaten 4 buffalo burgers.

Ava bought a rectangular rug for her hallway. The rug is 2/3 yd wide and 2 3/4 yd long. What is the area of the rug as a mixed number in simplest form?

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At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

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