Respuesta :

Frogbro123

Answer:

20 band posters

Step-by-step explanation:

120:100= 120/100

After selling 24 movie posters she has sold 24/120 x 100 =20% of them, so she must sell 20% of the posters too, that is 100 x 20% =20.

She must sell 20 posters

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