Respuesta :

amazingness17
The answer is B
Comment for an explanation
I HOPE THIS HELPS :)
ccamp579

Answer:

A.57

Step-by-step explanation:

This is how you do not do it: 56 + 42 = 98

98-30=68

but if you do the math right that's all wrong so  you need to know the basic things to this equation so its a