Answer:
On 14th afternoon their total pay will be approximately the same.
Step-by-step explanation:
Let x be day on which both students will have their total pay approximately the same.
On xth day student who has chosen plan A will get $11.50x 0r 1150x cents, while student who has chosen plan B will get [tex]2^{x} \text{ cents}[/tex].
Now we will equate both equations to solve for x,
[tex]1150x=2^{x}[/tex]
Upon solving this equation by calculator we get [tex]x\approx13.9719[/tex]. Therefore, on 14th day both students will have their total pay approximately the same.