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

### Instruction:
Bobby needed to make some trips with his truck and had only 12 gallons of gasoline. He drives to a supermarket 5 miles away and then drives back home. Then he headed to his farm which was 6 miles away. Two miles into the journey, he turned around and drove back home to retrieve some farming tools he forgot to take earlier and drove down to the farm. If he now has exactly 2 gallons of gasoline left, at what rate in miles per gallon has his truck been consuming gasoline?

### Response:
 Bobby anaendesha kwenda supermarketi na kurudi. Anasafiri maili 5 kila njia, hivyo ni jumla ya maili 10.
Kisha anaendesha kwenda shambani na kurudi. Anasafiri maili 6 kila njia, hivyo ni jumla ya maili 12.
Kisha anaendesha maili 2 kwenda shambani na kurudi, hivyo ni jumla ya maili 4.
Jumla ya safari zake ni 10 + 12 + 4 = <<10+12+4=26>>26 maili.
Alianza na lita 12 za petroli na sasa ana lita 2 zilizobaki, hivyo ametumia lita 12 - 2 = <<12-2=10>>10 za petroli.
Gari lake linatumia petroli kwa kiwango cha maili 26 / 10 lita = <<26/10=2.6>>2.6 maili kwa kila lita.