Answer:
B, D, and E
Explanation:
First, the formula for the area of a circle is 

Since pi is equal to 3.14, all we need is the radius squared. Since your radius is 12,
=144. Therefore, your equation for <em>area</em> will be (3.14)(144), answer B.
Second, the formula for the circumference of a circle is
.
So, 2(3.14)(12), answer D.
Edit: Answer E also says the same as above- it just multiples the 2 and the 12 together. Sorry for the initial error!
Answer:
The smallest particles are Quarks so I'm assuming that's right. But maybe you mean like normal small particles. So maybe clay because it is less than 0.002 mm.
Explanation:
continues to spread globally, with supply chain disruptions resulting in declines in income and employment. There are, hence, additional worries that the disease could threaten food chains and supply systems and stoke inflation. Water tariffs are also at risk if utilities are not supported financially to contain production costs and keep revenue streams. The Economist magazine recently invoked that notion by stating that shutters businesses and leaves supermarket shelves bare, economists fret that the pandemic could lead to inflation making an unwelcome return.” Thus, we should take a look at how inflation and water tariffs have evolved in years to be able to foresee