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

### Instruction:
Katya sold 8 glasses of lemonade and Ricky sold 9 glasses of lemonade. If Tina sold twice as many as Katya and Ricky's combined sales, how many more glasses of lemonade than Katya did Tina sell?

### Response:
 Katya na Ricky waliuza jumla ya glasi 8 + 9 = <<8+9=17>>17 za limau.
Tina aliuza glasi 17 x 2 = <<17*2=34>>34 za limau.
Tina aliuza glasi 34 - 8 = <<34-8=26>>26 za limau zaidi ya Katya.