280. You add all the numbers up, and divide by how many numbers you have. (320+280+280+250+270)/5.
Answer:
495
Step-by-step explanation:
60x10=600
600-105=495
The area of a circle is represented by the equation:

We know that the diameter is two times the radius: 
So if we know that the diameter of the circle is 24m, we can divide this by two in order to get the radius:
-->
So then we can plug this radius in to the equation for the area of a circle:


We are told to use 3.14 as pi, and not pi itself, so let's plug in 3.14 for pi:


Now we know that the area of this circle is 452.16 square meters.
Answer:
The LCM of 24,39,60, and 150 is 7,800.
Step-by-step explanation:
I use prime factorization and then I mulitply all of the double numbers.