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

### Instruction:
 Gary ana gramu 30 za dhahabu ambazo zinagharimu $15 kwa gramu. Anna ana gramu 50 za dhahabu ambazo zinagharimu $20 kwa gramu. Gharama ya dhahabu yao yote ni kiasi gani?


### Response:
 Kununua kiasi sawa cha dhahabu kama ya Gary, mtu anapaswa kulipa 30 * 15 = $<<30*15=450>>450.
Kununua kiasi sawa cha dhahabu kama ya Anna, mtu anapaswa kulipa 50 * 20 = $<<50*20=1000>>1000.
Hivyo, jumla, dhahabu yao itagharimu 450 + 1000 = $<<450+1000=1450>>1450.