[Question]: Emma is 7 years old. If her sister is 9 years older than her, how old will Emma be when her sister is 56?
[Answer]: Emma's sister is 7 + 9 = 16 years old. In this many years, Emma's sister will be 56 years old: 56 - 16 = 40 years. When her sister is 56 years old, Emma will be 7 + 40 = 47 years.
So the answer is 47.

[Question]: Janet buys 3 pounds of broccoli for $4 a pound, 3 oranges for $0.75 each, a cabbage for $3.75, a pound of bacon for $3, and two pounds of chicken for $3 a pound. What percentage of her grocery budget did she spend on meat, rounded to the nearest percent?
[Answer]: First find the total cost of the broccoli: 3 pounds * $4 / pound = $12. Then find the total cost of the oranges: 3 oranges * $0.75 / orange = $2.25. Then find the total cost of the vegetables: $12 + $2.25 + $3.75 = $18. Then find the total cost of the chicken: $3 / pound * 2 pounds = $6. Then add the cost of the bacon to find the total cost of the meat: $6 + $3 = $9. Then add the cost of the meat and vegetables to find the total cost of the groceries: $9 + $18 = $27. Then divide the cost of the meat by the total grocery bill and multiply by 100% to express the answer as a percentage: $9 / $27 * 100% = 33.333%, which rounds down to 33%.
So the answer is 33.

[Question]: There are twice as many surfers on Malibu beach as in Santa Monica beach. If there are 20 surfers in Santa Monica, calculate the total number of surfers on the two beaches.
[Answer]:
If there are 20 surfers at Santa Monica, Malibu beach has twice as many surfers as Santa Monica has 2 * 20 = 40 surfers. Together, the two beaches have a total of 40 + 20 = 60 surfers.
So the answer is 60.