According to an online calculator you used up 770 calories, but that's a very aproximate value which can't really know how hard you rode.
Depends on how hard she's riding. Which heart rate she'll reach and maintain, and how long, is more important than which exercise she's doing.
A 55 year old female should eat about 1700 calories a day.
Around 6,400 calories for male, 6,100 calories for female.
About 1,600 calories a day.
It depends on your height and weight. 2000 calories is probably close to your daily need though.
The average teenage female consumes 1,800 calories a day. The average teenage male consumes 2,600 calories per day. Teenagers need more calories because they are growing.
The recommended daily caloric allowance for an adult female is 2,200 calories. For a male, the allowance is 2,700 calories. The actual amount of calories needed depends on age and level of activity.
About 1,700 calories daily.
About 1,600 calories a day.
It does not matter what proportion of daily calories come from breakfast.
None.
an adult male takes in 2000-2500 calories and an adult female takes in 1800-2000 calories.
2500-3500 calories per day