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

### Instruction:
Jack is running a bake sale to help pay for his basketball team's uniforms. He's already sold 4 brownies for $3 each and 5 lemon squares for $2 each. If Jack's goal is to make $50 and he sells cookies for $4 each, how many cookies does he need to sell to reach his goal?

### Response:
 Jack alipata kutoka kwa brownie $3 kwa kila brownie * 4 brownie = $<<3*4=12>>12.
Jack alipata kutoka kwa lemon square $2 kwa kila square * 5 square = $<<2*5=10>>10.
Kwa kuwa anahitaji $50 na amepata $12 + $10 = $22, Jack bado anahitaji $50 - $22 = $<<50-22=28>>28.
Ili kufikia lengo lake, Jack bado anahitaji kuuza $28 / $4 = <<28/4=7>>7 kuki.