Respuesta :

Answer:

30c  +3d

Step-by-step explanation:

20c + 8d + 10c - 5d

Combine like terms

20c+10c   +8d - 5d

30c  +3d

Answer:

30c + 3d

Step-by-step explanation:

20c + 10c = 30c

8d - 5d = 3d

= 30c + 3d