Sole the following problems by setting up a proportion, then solving by cross multiplying. if possible, set up the proportion as a single step proportion for the problem. a pair of 80 headphones went on sale for 15% off. what was the sale price

20 points 1. your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph. 2. taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1