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

### Instruction:
 Tyler has $100. If he buys 8 scissors for $5 each and 10 erasers for $4 each, how much of his money remains?


### Response:
 Las 8 tijeras cuestan $5 x 8 = $<<5*8=40>>40.
Las 10 gomas cuestan $4 x 10 = $<<4*10=40>>40.
El costo total de las tijeras y las gomas es $40 + $40 = $<<40+40=80>>80.
A Tyler le quedan $100 - $80 = $<<100-80=20>>20.