The answer is y = 10/11x + 27/11
I attached the work in a photo.
If you have any further questions feel free to ask.
Hope this helps.
4000.00 x 2.0 = $80.00 per year x 2 years = $160.00 so 6 months would earn $40.00 taking it to the $200, so 2 yrs 6 mos.
