Lisa drove 80 miles, then increased her speed by 10 miles per hour for 180 miles. If the second part of the drive took 2 hours longer than the first part, find her average speed.

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

Asphere has a diameter of 10 in. what is the volume of the sphere?

The only way to identify an intercept is as an ordered pair. true false