Respuesta :

tfmooning
4.1666666667...

That's what I got.
3 1/3 ft .........1 hour
?    ..............2 1/2 hours

2 1/2 * 3 1/3
= 5/2 * 10/3
= 50/6
=8 2/6
=8 1/3

answer: 8 1/3 feet in 2 1/2 hours