Answer the following question.
Sandra wants to buy some sweets. She saved $10 for this purpose. Her mother gave her an additional $4, and her father twice as much as her mother. One candy costs $0.5, and one jelly bean $0.2. She wants to buy 14 candies and 20 jelly beans. How much money will she be left with after the purchase?
Step-by-step reasoning process: Sandra's father gave her $4 * 2 = $8. So Sandra has in total $8 + $4 + $10 = $22. She wants 14 candies, so she is going to pay 14 candies * $0.50 / candy = $7 for them. She wants also 20 jellybeans, and they're going to cost 20 jellybeans * $0.20 / jellybean = $4. So after the purchase, she will be left with $22 - $4 - $7 = $11.
The answer is 11.

Answer the following question.
Missy has an obedient dog and a stubborn dog. She has to yell at the stubborn dog four times for every one time she yells at the obedient dog. If she yells at the obedient dog 12 times, how many times does she yell at both dogs combined?
Step-by-step reasoning process: First find the number of times Missy yells at the stubborn dog: 4 * 12 times = 48 times. Then add the number of times she yells at the obedient dog to find the total number of times she yells: 48 times + 12 times = 60 times.
The answer is 60.

Answer the following question.
Ivan buys 48 apples to make 24 full-size pies. He ends up not using as many as he thought because he decides to make mini pies instead of full-size ones, which only use 1/2 an apple each. If Ivan bakes 24 mini pies, how many apples does he have leftover?
Step-by-step reasoning process: Ivan wants to bake 24 pies which use 1 / 2 an apple each, 24 pies x 1 / 2 apple each = 12 apples. Ivan uses 12 of his 48 apples, 48 - 12 = 36 apples. Ivan has 36 apples leftover.
The answer is 36.

Answer the following question.
Haley is getting ready to watch a comet fly over her house. She spends two hours shopping for a telescope, half an hour getting everything set up in the backyard, three times the setup time making snacks, and 20 minutes watching the comet. What percentage of the total time she spent on all those activities was spent watching the comet, rounded to the nearest percent?
Step-by-step reasoning process: First convert Haley's shopping time to minutes: 2 hours * 60 minutes / hour = 120 minutes. Then convert Haley's setup time to minutes: .5 hours * 60 minutes / hour = 30 minutes. Then find the total time she spends making a snack: 3 * 30 minutes = 90 minutes. Then add the time she spends on each activity to find the total time: 120 minutes + 30 minutes + 90 minutes = 240 minutes. Then divide the time she spends watching the comet by the total time and multiply by 100% to express the answer as a percentage: 20 minutes / 240 minutes = 8.333...%, which rounds down to 8%.
The answer is 8.