 
<translate> Yana tafiyar mil 75 * 10 = mil 750. Don haka yana amfani da 750 / 50 = 15 galan. Wannan yana nufin ya kashe 15 * 3 = $45 akan gas. Amsar ƙarshe: 45. <eng> He drives 75 * 10 = 750 miles. So he uses 750 / 50 = 15 gallons. That means he spends 15 * 3 = $45 on gas. Final answer: 45. 