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

### Instruction:
Karen is a dog groomer. Rottweilers take 20 minutes to groom, border collies take 10 minutes to groom, and chihuahuas take 45 minutes to groom because they ferociously resist. How many minutes will it take Karen to groom 6 Rottweilers, 9 border collies and 1 chihuahua?

### Response:
 Kwanza tafuta jumla ya muda Karen anatumia kumtunza Rottweilers: dakika 20/Rottweiler * Rottweilers 6 = <<20*6=120>>120 dakika
Kisha tafuta jumla ya muda anayotumia kumtunza border collies: dakika 10/border collie * border collies 9 = <<10*9=90>>90 dakika
Kisha ongeza muda uliotumika kumtunza aina zote tatu za mbwa ili kupata jumla ya muda wake wa kumtunza: dakika 120 + dakika 90 + dakika 45 = <<120+90+45=255>>255 dakika