Respuesta :

8h + (-7.9d) - 16 + 5d - 2.4h
8h - 7.9d - 16 + 5d - 2.4h

lets collect like terms..
8h - 2.4h = 5.6h
5d - 7.9d = - 2.9d
-16....even though this has no like terms, dont forget about it

now put it together...
5.6h - 2.9d - 16 <====
The answer should be 5.6h-2.9d-16.:)