Answer:
40
Step-by-step explanation:
400÷10=40
It says my answer needs to be 20 characters long so I'm writing this.
<span>49b^6 = 7b^5(7b)
</span><span>28b^5 = 7b^5(4)
so
</span><span>greatest common factors for 49b^6 and 28b^5 = 7b^5</span>
The equation for the area of a circle is A = pi times r^2
The radius is half the diameter, making it 5.
A = pi times 5^2
Simplify to: A = pi times 25
A = 78.5
