Respuesta :

C

The one that says
15x + 30x = x(15 + 30)
= 2(15 + 30)
= 2 • 45
= 90
15x + 30x (x = 2)
15 X 2 + 30 X 2
30 + 60 = 90

So bottom left
RELAXING NOICE
Relax