 <translate> Maci pays 10 * $0.10 = $1 for the blue pens. Each red pen costs 2 * $0.10 = $0.20. She pays 15 * $0.20 = $3.00 for the red pens. To buy all the pens she needs, Maci pays $3 + $1 = $4. <yor> Maci san 10 * $0.10 = $1 fún àwọn ọ̀dà búlúù. Owó tó máa ń wọlé fún búlọ́ọ̀kù pupa kọ̀ọ̀kan jẹ́ 2 * $0.10 = $0.20. Ó san 15 * $0.20 = $3.00 fún àwọn búlọ́ọ̀kù pupa. Kí Maci lè ra gbogbo ohun tó bá nílò, ó máa ń san $3 àti $1 = $4. 