The world record for longest fingernails is 26 inches. Sandy, who just turned 12 this month, has a goal for tying the record. Her fingernails are 2 inches long. Her fingernails grow at a rate of one-tenth of an inch per month. How old will she be when she achieves the world record?
Let's think: Sandy's fingernails will grow a total of ( 0.1 ) * 12 = 1.2 inches per year. To achieve the world record, Sandy needs to grow her fingernails a total of 26 - 2 = 24 inches. It will take her a total of 24 / 1.2 = 20 years. Sandy will be 12 + 20 = 32 years old when she achieves the world record.. The answer is: 32.

Sadie has 140 math homework problems for the week. 40 percent are Algebra problems, and half of the Algebra problems are solving linear equations. How many solving linear equations problems does Sadie have to solve?
Let's think: Algebra:140(.40) = 56 problems. Linear:56 / 2 = 28 problems.. The answer is: 28.

Austin receives $5 for every hour he helps his father build a deck in their backyard. He works for 2 hours on Mondays, an hour on Wednesdays, and 3 hours on Fridays. If Austin wants to buy a bicycle that costs $180, how many weeks does he have to work?
Let's think: Austin works a total of 2 + 1 + 3 = 6 hours a week. Since he is paid $5 per hour of work, he'll earn $5 * 6 = 30 in a week. To make $180, he'll have to work for $180 / $30 = 6 weeks.. The answer is: 6.

Isabel loves to run in the forest and she does it within a circuit that is 365 meters long. She runs the circuit 7 times in the morning and runs it 3 times in the afternoon. How many meters does Isabel run during a week?
Let's think:
In the morning she runs 7 * 365 = 2555 metres. In the afternoon she runs 3 * 365 = 1095 meters. In one day, afternoon and morning, she runs 2555 + 1095 = 3650 meters. In a week, she runs 7 * 3650 = 25550 meters.. The answer is: 25550.