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

### Instruction:
Lana had 8 blank pages left in her binder, but she knew she would need more for her next class. Duane took half of the 42 pages in his binder out and gave them to her. How many pages does Lana have in her binder after adding Duane’s?

### Response:
 Baada ya Duane kumpa Lana kurasa kutoka kwenye kijalida chake, aliongeza kurasa 42 / 2 = 21 kwenye kijalida chake.
Kwa mchango wa Duane, kijalida cha Lana kina kurasa 21 + 8 = <<21+8=29>>29.