Respuesta :

Answer: 3/10

Step-by-step explanation:

3/10 + 4/10= 7/10

10/10 - 7/10= 3/10

Answer:

B, 3/10

Step-by-step explanation:

She used 3/10 for the pie, and 4/10 for the milkshake. Just add those two together and subtract 7/10 from 10/10 or 1.