Plan A)
Because if you do plan B then it will take 12 weeks to pay it off but plan A will take 11 weeks
Hope that helps :)
Plan A should pay for the computer faster.
Given that,
Now
For Plan A, the no of weeks should be
[tex]= \frac{\$840 - \$180}{\$60} \\\\= \frac{\$660}{\$60}[/tex]
= 11 weeks
For Plan B, the no of weeks should be
[tex]= \frac{\$840 -\$0}{\$70} \\\\= \frac{\$840}{\$70}[/tex]
= 12 weeks
Therefore we can conclude that Plan A should pay for the computer faster.
Learn more about the computer here: brainly.com/question/24504878