8. Verify that Q (the rational numbers) is a ring, and, in fact, an integral domain. Show that the only ideals in Q are {0} and Q.

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Find the area of a parallelogram with base 15 yards and height 21 2/3