Respuesta :

Answer:

12x+15y

Step-by-step explanation:

3(4x + 5y)

Distribute

3*4x + 3*5y

12x+15y

Wolfyy

Distributive property: a(b + c) = ab + ac

= 3(4x + 5y)

= (3 * 4x) + (3 * 5y)

= 12x + 15y

Best of Luck!