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.
Do you mean 3/√11 ? In this case, you'll have to multiply both, numerator and denominator by the denominator ...
The hypotenuse is the longer of the 3 sides:
answer: b.26
80 million. 2001= 73 million. 2004=77 billion. 2007=81 million. Take away a year, maybe take away one million.
