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

### Instruction:
From Monday to Friday, Elle practices piano for 30 minutes. On Saturday, she practices piano three times as much as on a weekday. There is no practice on Sunday.  How many hours does Elle spend practicing piano each week?

### Response:
From Monday to Friday, Elle practices 0.50 x 5 = <<0.50*5=2.5>>2.5 hours.
On Saturday, she practices 0.50 x 3 = <<0.50*3=1.5>>1.5 hours.
Each week, Elle practices 2.5 + 1.5 = <<2.5+1.5=4>>4 hours.
#### 4