Answer:
0.65217391304
or
.65
or
65%
(what ever you need it to be in)
 
        
             
        
        
        
Answer:
Roasting a marshmallow is a physical change if it is slightly warmed up. If it is roasted to the point that it is crispy and burnt, it is a chemical change bc the browning is oxidation. This is a process where some of the marshmallow's sugar is burnt and carbon dioxide is released into the air. 
Explanation: