Question

pls solve this sum pls send the step by step explanation ​

Answer 1

Answer:

this is because 7 from -4 , we will take -4 and then 7. 7s sign will be change and the -7 and -4 sum will be -11.

Step-by-step explanation:

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Answer 2

Answer:

The Mobil brand now mainly covers a wide range of automotive, industrial, aviation and marine lubricants. For historic reasons, the Mobil brand is still used by Mobil service stations and for fuel (gasoline, diesel, heating oil, kerosene, aviation fuels and marine fuel) products.