The sale price for a computer is $450. the original price was first discounted by 25% and then was discounted an additional 20%. find the original price of the computer

If the measure of xyz is 81 what is the measure of yz

Graph the equation by plotting point x=2

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil