Stacy was 50 inches tall last year. If she grew 6 inches more than her brother who grew 1 inch last year, how tall is Stacy now? Give the rationale and then the answer.
Let's think step by step. Stacy grew 6 + 1 = 7 inches. Stacy is 50 + 7 = 57 inches tall.. The answer is: 57.

Wanda walks her daughter .5 miles to school in the morning and then walks .5 miles home. She repeats this when she meets her daughter after school in the afternoon. They walk to school 5 days a week. How many miles does Wanda walk after 4 weeks? Give the rationale and then the answer.
Let's think step by step. She walks .5 miles to school and back 4 times a day so that's .5 * 4 = 2 miles. She walks 2 miles a day for 5 days so that's 2 * 5 = 10 miles. Over 4 weeks of walking 10 miles per week she walks 4 * 10 = 40 miles.. The answer is: 40.

Cynthia has four times as many water balloons as her husband, Randy. Randy has only half as many water balloons as his daughter, Janice. If Janice throws all 6 of her water balloons at her father, how many water balloons does Cynthia have, which she could also choose to throw at Randy? Give the rationale and then the answer.
Let's think step by step. Randy has only half as many water balloons as Janice’s 6, for a total of (½) * 6 = 3 water balloons. Cynthia has 4 times as many water balloons as Randy, for a total of 4 * 3 = 12 water balloons.. The answer is: 12.