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In Tim's house,a rectangular swimming pool whose length 30 m

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In Tim's house,a rectangular swimming pool whose length 30 meters and width 10 meters is surrounded by grass.The pool with the grassy area makes a large rectangle whose length is 50 meters ang width 20 meter.Draw the picture first then answer:What arrea is occupied by the grass
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A telephone company charges initially $0.50 ang then $0.11 for every minute.Write an expression that gives the cost of a call that lasts N minute
Tim的房间里,一个长30米宽10米的长方形游泳池被草坪包围着.带草坪区的游泳池是一个长50米,宽20米的长方形.请先画图,然后回答,草坪所占面积是多少?
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