Question: James takes up dancing for fitness. He loses twice as many calories per hour as he did when he was walking. He dances twice a day for .5 hours each time and he does this 4 times a week. He burned 300 calories an hour walking. How many calories does he lose a week from dancing?
Answer with step-by-step thinking: He burns 2 * 300 = 600 calories an hour. He dances for .5 * 2 = 1 hour per day. So he burns 600 * 1 = 600 calories per day. So he burns 600 * 4 = 2400 calories per week.
So the answer is 2400.

Question: Luna's monthly food budget is equal to 60% of her house rental budget while her phone bill budget is 10% of her food budget. If the total budget of house rental and food budget is $240, how much is Luna's total monthly budget to pay all those expenses?
Answer with step-by-step thinking: Let x be Luna's house rental budget. The total budget for house and food rental is represented by the equation x + (60x / 100) = 240. The equation becomes 100x + 60x = 24000 after multiplying each term by 100 to get rid of the fraction. By combining like terms, the equation becomes 160x = 24000. Thus, the value of x is 24000 / 160 = 150 which represents the house rental budget. So, Luna's food budget is $240 - $150 = $90. Her phone bill budget is $90 x 10 / 100 = $9. Therefore, Luna's monthly budget for all those expenses is $240 (house and food) + $9 (phone) = $249.
So the answer is 249.

Question: Theo can eat 13 cookies, 3 times a day, 20 days each month. How many cookies can he eat in 3 months?
Answer with step-by-step thinking:
The total amount of cookies he can eat in a day is 13 x 3 = 39. The total amount of cookies he can eat in a month is 39 x 20 = 780. Therefore, the total amount of cookies he can eat in 3 months is 780 x 3 = 2340.
So the answer is 2340.