Respuesta :
Answer: It should be C
Step-by-step explanation: This is because since She has 29 seashells then got 10 more that would add it and since she gave some to her little sister we subtract there
Answer:
I think that it would be C 29+10-S
Step-by-step explanation:
I say this because she had 29 then got 10 which would be 29+10 and she gave S away that's 2o+10-S