Answer:
261 calories or 264 calories. Either it's c) or d).
Step-by-step explanation:
3 candy bars = 783 calories
3 candy bars = 792 calories
3 candy bars x Unknown calories = 783 calories x 3 candy bars
3 candy bars x Unknown calories = 792 calories x 3 candy bars
Unknown calories = (783 calories)/(1 bar) = 261 calories per bar
Unknown calories = (792 calories)/(1 bar) = 264 calories per bar