At least 680 in sales because 200$-64$ is 136. 136*5=680 because 136 is one fifth or 20% of 680
Use the tutor app to help you he or she will help you for each problem.
(4/5)*what = (2/3)
Multiply by 5/4
.. what = (2/3)*(5/4)
.. what = 5/6
Line AB is a line, for the line continues through the points given and goes on 'forever'
hope this helps