1 Answer

Zanael · Answer 1 · 2023-06-01T23:16:43+0000

$\text{21 + m = 66}$ Step-by-step explanation:

The sum of 21 and Mabel's score is 66:

This means 21 was added to Mabel's score to give 66

let Mabel's score = m

21 + Mabel's score = 66

In the from equation:

$\text{21 + m = 66}$

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