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

### Instruction:
John buys thank you cards.  He decides to buy them for people who got him Christmas and birthday presents.  He sent 20 for Christmas gifts and 15 for birthday gifts.  If each card cost $2 how much did he spend on cards?

### Response:
 John alinunua kadi 20 + 15 = <<20+15=35>>35
Kila kadi iligharimu $2
Jumla ya gharama ni 35 * 2 = <<35*2=70>>70 dola