human
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?
assistant
How much do two sets of metal beads cost? ** Two sets of metal beads cost 2 x $10 = $<<2*10=20>>20.
How much does Nancy spend in all? ** Therefore, Nancy spends $9 + $20 = $<<9+20=29>>29 in all.
#### 29