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

### Instruction:
James buys 3 dirt bikes for $150 each and 4 off-road vehicles for $300 each.  It also cost him $25 to register each of these.  How much did he pay for everything?

### Response:
 Alinunua pikipiki 3 kwa $150 kila moja hivyo ni 3*150=$<<3*150=450>>450
Alinunua magari ya off-road 4 kwa $300 kila moja hivyo ni 4*300=$<<4*300=1200>>1200
Alilazimika kusajili magari 7 hivyo iligharimu 25*7=$<<25*7=175>>175
Sasa ongeza kila kitu ili kupata jumla. Pikipiki ziligharimu $450, magari ya off-road yaligharimu $1200 na usajili uligharimu $175 kwa jumla ya 450+1200+175 = $<<450+1200+175=1825>>1825