Shara borrowed money from her brother 6 months ago. She returned $10 per month to her brother. Currently, she was able to return half of the money she borrowed. How much will she still owe her brother 4 months from now?
Let's think: For 6 months, Shara was able to return $10 x 6 = $60 to her brother. Since she already returned half of the money, then this means she currently owes her brother $60. Four months from now, she will be able to pay an additional $10 x 4 = $40. Thus, she will still owe her brother $60 - $40 = $20 four months from now.. The answer is: 20.

Patsy is gearing up for this weekend’s graduation. She needs to have 6 appetizers per each of her 30 guests. She’s making 3 dozen deviled eggs, 2 dozen pigs in a blanket and 2 dozen kebabs. How many more dozen appetizers does she need to make?
Let's think: She needs 6 appetizers per each of her 30 guests so she needs 6 * 30 = 180 appetizers. She’s made 3 dozen deviled eggs, 2 dozen pigs in a blanket and 2 dozen kebabs so she’s made 3 + 2 + 2 = 7 dozen appetizers. 7 dozen appetizers is 7 * 12 = 84 appetizers. She needs 180 appetizers and has made 84 so she needs 180 - 84 = 96 appetizers. 96 appetizers, in dozens, is 96 / 12 = 8 dozen more appetizers.. The answer is: 8.

Carla spends 10 minutes sharpening her knife and 3 times that amount of time peeling vegetables. How much time does she spend on these activities total?
Let's think: First find the total time Carla spends peeling vegetables: 10 minutes * 3 = 30 minutes. Then add the time she spent sharpening her knife: 30 minutes + 10 minutes = 40 minutes.. The answer is: 40.

Ashley had a birthday party and invited 20 of her friends, telling them to each invite one more person to attend the party. If half the number of the invited guests each came with one more person, what's the total number of people at the party, including Ashley?
Let's think:
If she invited 20 friends, then the number of friends who came with one more person is 1 / 2 * 20 = 10. If the 10 friends came with 10 more people, the total number of guests becomes 20 + 10 = 30 guests. If you add Ashley, the total number of people in the party is 30 + 1 = 31 people.. The answer is: 31.