Andy is training for a triathlon. He trains 5 days a week, each day he rides his bike for 2 hours, runs for 1 hour, and swims for 30 minutes. The training plan he follows is 12 weeks long.

Part A: If Andy burns 844 calories during his 2-hour bike ride, 398 calories during his run, and 295 calories during his swim, how many calories does he burn in a day?

Part B: How many calories does Andy burn in a week?

Part C: How many calories will Andy burn over his 12 weeks of training?

- Part A: Calculate daily calories burned:
[tex]\[
844 + 398 + 295 = 1,537 \text{ calories}
\][/tex]

- Part B: Calculate weekly calories burned:
[tex]\[
1,537 \times 5 \text{ days} = 7,685 \text{ calories}
\][/tex]

- Part C: Calculate total calories burned over 12 weeks:
[tex]\[
7,685 \times 12 \text{ weeks} = 92,220 \text{ calories}
\][/tex]

Let's solve the problem step-by-step for each part.

Part A:
To find out how many calories Andy burns in a day, we need to add up all the calories burned from each activity:

- Bike ride: 844 calories
- Run: 398 calories
- Swim: 295 calories

Total calories burned in a day:

[tex]\[ 844 + 398 + 295 = 1,537 \text{ calories} \][/tex]

So, Andy burns 1,537 calories in a day.

Part B:
To calculate the calories Andy burns in a week, we need to multiply the daily calories burned by the number of days he trains in a week:

Andy trains 5 days a week, so:

[tex]\[ 1,537 \times 5 = 7,685 \text{ calories} \][/tex]

Therefore, Andy burns 7,685 calories in a week.

Part C:
Finally, to find out how many calories Andy will burn over his 12 weeks of training, we multiply the weekly calories burned by the number of weeks:

[tex]\[ 7,685 \times 12 = 92,220 \text{ calories} \][/tex]

Thus, over the 12 weeks of training, Andy will burn a total of 92,220 calories.

These calculations allow us to see how much energy Andy expends over different periods of his training plan.