For this case we have that by definition, the area of a circle is given by:

Where:
r: It is the radius of the circle
According to the data of the statement we have that the circle has a radius of 
Substituting in the formula we have:

So, the area of the circle is
feet squared
Answer:
Option D
Given:
Stem Leaf
1 6
2 5, 6
3 8,
4 0, 0, 0, 4
5
6 7
There are 6 people who are over the age of 30.
Their ages are 38, 40, 40, 40, 44, and 67
The numbers are 79, 80, and 81.
79+80+81=240.
Answer:
Tommy made a mistake in the concept of adding these fractions. He added the numerators together, resulting in 7. He then added the denominators, resulting in 15. His result is 7/15, which is wrong.
What you are supposed to do is find the least common denominator (LCD) of the two fractions. Of 3/10 and 4/5, the LCD is 10. 3/10 + 8/10 (8/10 is the same as 4/5) = 11/10 or 1 1/10