 <translate> On Tuesday last week, Leo dropped off 10 pairs of trousers and some shirts at Sudsy Laundry. He was given a bill of $140, charged at $5 per shirt and $9 for each pair of trousers. When he went to pick up his clothes yesterday, the attendant insisted that he had only dropped off 2 shirts. Leo reported the matter to the manager, who ordered the attendant to search for the rest of Leo’s shirts. How many shirts were missing? Let's think first. Chain of thought: <yor> Lọ́jọ́ Tuesday tó kọjá, Leo kó ẹ̀wù àti bàtà mẹ́wàá lọ sí ilé ìfọṣọ Sudsy. Wọ́n fún un ní àkáǹtì kan tó jẹ́ $140, wọ́n sì ní kó san $5 fún ẹ̀wù kan àti $9 fún aṣọ kan. Nígbà tí ó lọ kó aṣọ rẹ̀ lọ́jọ́ àná, òṣìṣẹ́ náà tẹnu mọ́ ọn pé aṣọ méjì péré ló gbé wá. Léò sọ fún ọ̀gá tó ń bójú tó ilé iṣẹ́ náà, ẹni náà sì ní kí òṣìṣẹ́ tó ń bójú tó ilé iṣẹ́ náà wá àwọn ẹ̀wù Leo tó ṣẹ́ kù. Ẹ̀wù mélòó ló sọnù? Ẹ jẹ́ ká kọ́kọ́ ronú. Àlàfo èrò: 