How to eliminate a fraction in a fraction

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

If angle ase measures 168 degrees, find the measure of angle dse. the figure mag not be drawn to scale