 
 <prompt> Mandy buy 3 packs of black shirts and 3 packs of yellow shirts for her tennis team. The black shirts dey come in packs of 5, and the yellow shirts dey come in packs of 2. How many shirts Mandy buy for all? <response>: ```The number of black shirts na 3 × 5 = 15.
The number of yellow shirts na 3 × 2 = 6.
Mandy buy 15 + 6 = 21 shirts.

The answer go be 21.``` 