Respuesta :

She spent $9.

$16+$6 is $22, so the total $31 minus $22 leaves us with the $9 she spent for the taxi.

$9

You find 16+6 (22)

That is the total cost for everything except the taxi. To find it out, you would find the difference between 31 and 22.

You find this by:

31-22=9

9


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