6 blades in 1 windmill is the "unit rate" A unit rate is the number per thing. You will need to multiply. Multiply 6X7. 6 for 6 blades and 7 for 7 windmills. It is 42. 42 blades are in 7 windmills.
4 miles
Step-by-step explanation:
if you travel 8 in 1 hour just cut it in half
8 * 1/2 = 4
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