 
 <translate> The second shirt is 15 - 6 = 9 dollars. Both shirts cost 15 + 9 = 24 dollars. So the answer is 24. <hau> Shirt na biyu ya kai 15 - 6 = 9 dala. Duk rigunan biyu sun kai dala 15 + 9 = 24. Amsar ita ce 24. 