Respuesta :

Answer:

Letter A. For Barbara to convert 78F to Celsius. She must subtract 32 from 78. then multiply it by 5/9.

Explanation:

Step 1:

78 °F - 32 = 46 

Step 2:

Multiply 46 by 5/9

Then, the answer is

Multiply 46 by 5/9.

Answer:

a

Explanation:

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