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

### Instruction:
A bead shop sells one set of crystal beads at $9 each and one set of metal beads at $10 each. Nancy buys one set of crystal beads and two sets of metal beads. How much does she spend in all?

### Response:
 Seti mbili za mabeadi ya metali gharama 2 x $10 = $<<2*10=20>>20.
Hivyo, Nancy anatumia $9 + $20 = $<<9+20=29>>29 jumla.