What is the result of question?

You can ride your bike around your block 6 times and the whole neighborhood 5 times in 16 minutes. you can ride your bike around your block 3 times and the whole neighborhood 10 times in 23 minutes. how long does it take you to ride around the neighborhood?

The area of a circle is equal to 1 dm². find the radius of the circle.

What is 10+10+20 about the origin the square root of a triangle.