 
 <prompt> Mary n gba iwe iroyin re fun ojo kan pelu ojo merin. Omolile ni owo ti Mary ti gba $10 fun apoti isu ati $5 fun apoti iranlowo ni ojo kan, ati Mary ni apoti isu meji ati apoti iranlowo kan. Won ti fun Mary awo 18% si iwe gbogbo yii nigbati awon iwe aye, sugbon won ti fun Mary awo $20 fun fi ohun ti ko dara si apoti iranlowo. Se owo iwe apoti Mary ni owo melo? <response>: ```Fọọdun kan, ṣe a ri bii Mary rẹ ni n ṣe ọdun fun awọn bini isu: $10/bini isu * 2 bini isu = $20
Ṣugbọn fi yii pada si iye bini ayoka: $20 + $5 = $25
Ṣugbọn ko iye ọdun kan fun nọmba ọdun ni lati ri iye ọdun: $25/ọdun * 4 ọdun/ọdun = $100/ọdun
Nitori o ṣe a ri iye ọdun ti Mary ti gba funra: 18% * $100 = $18
Nitori o ṣe a ri iye ọdun ti Mary ti gba funra: $100 - $18 + $20 = $102

Iwe iroyin: 102.``` 