For the following system, use the second equation to make a substitution for y in the first equation. 2x + y = 5 y + 3 = 2x a) 2x + 2x - 3 = 5 b) 2x + 3 - 2x = 5 c) 2x + 2x + 3 = 5

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

What number is 7 units left of -15?

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?