Respuesta :
it equals -17 because if u add it with the decimals it would equal -17.0 but the zero isn't necessary so that is how u get it.
(-8.1)+(-8.9)
=(-17)
since they're both negatives and you're adding them, the answer will also be a negative number
=(-17)
since they're both negatives and you're adding them, the answer will also be a negative number