Arthur D. answered 03/27/14
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4+3=7 (the ratio is 4 to 3)
420/7=60
4*60=240 stuffed bears
3*60=180 toy cars
a) 9+7=16 (the ratio is 9 to 7)
240/16=15
9*15=135 large stuffed bears
7*15=105 small stuffed bears
b) 7+3=10 (the ratio is 7 to 3)
180/10=18
7*18=126 toy racecars
3*18=54 toy trucks