Respuesta :

B
This is an expand the brackets question. So you multiply the number on the outside of the bracket by the numbers on the inside of the bracket.
3*8=24
3*5=15

Answer:

B

Step-by-step explanation:

Given

24 + 15 ← factor out 3 from each term

= 3(8 + 5)

As a check

24 + 15 = 39 and

3(8 + 5) = 3 × 13 = 39

Hence 24 + 15 = 3(8 + 5) → B