Alex draws the scale model shown as a plan for a large wall mosaic. 10 cm 12 cm a. The

Alex draws the scale model shown as a plan for a large wall mosaic. 10 cm 12 cm a. The wall is 10 m wide and 7 m high. What are the dimensions of the largest mosaic he can make on that​ wall? Explain. b. He will use​ 2-cm square tiles to make his mosaic. How many tiles will he​ need? Explain how you found your answer.

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