Find the value of x for the right triangle.

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

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