Krista made a rectangular cardboard sign that was 7 inches by 9 inches. She then cut out a rectangular piece that was 2 inches by 3 inches. What was the area of the cardboard after the piece had been removed?

answer: if though all maps are biased we study them to tell we have to go and use them to tell the direction we have to go but if you don't want to use a compass to find the way to go then the only option is to use the standard maps made by the european's  

explanation:

answer:

a

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