 
 <prompt> Pima put $400 for Ethereum. For di first week, e gain 25% for value. For di second week, e gain extra 50% on top of di first gain. How much e investment dey worth now? <response>: For di first week, her investment gain na $400 * 25% = $100.
Dis one leave her investment with value of $400 + $100 = $500.
For di second week, her investment increase by $500 * 50% = $250.
Pima investment for Ethereum now worth total of $500 + $250 = $750.

Di final answer: 750. 