Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Ali had a collection of seashells. He started with 180 seashells. He then gave away 40 seashells to his friends. He also gave 30 seashells to his brothers. If he sold half of the remaining seashells, how many seashells did he have left?

### Response:
 Baada ya kutoa konokono 40+30 = <<40+30=70>>70 kwa marafiki na ndugu zake, Ali alibakiwa na konokono 180 - 70 = <<180-70=110>>110.
Ikiwa aliouza nusu ya konokono, aliouza 1/2*110 = 55 konokono.
Ali alibakiwa na 110 - 55 = <<110-55=55>>55 konokono.