[Question]Carson is covering the high school football field with grass seed. Each square meter needs three times as much seed as fertilizer. If Carson uses 60 gallons of seed and fertilizer combined, how many gallons of seed does he use?
[Answer]Let s be the number of gallons of seed Carson uses and f be the number of gallons of fertilizer. We know that s = 3f and s + f = 60. Substituting the first equation into the second equation produces 3f + f = 60. Combining like terms, we get 4f = 60. Dividing both sides by 4, we get f = 15. Substituting that value into the equation s = 3f, we get s = 3 * 15 = 45. The answer is 45.

[Question]Goldie makes $5 an hour for pet-sitting. Last week, she worked for 20 hours while this week, she worked for 30 hours. How much did Goldie earn in two weeks for pet-sitting?
[Answer]Goldie did pet - sitting for a total of 20 + 30 = 50 hours. So, she earned a total of $5 x 50 = $250. The answer is 250.

[Question]Jane bought pens for her three students. Each student received 62 red pens and 43 black pens. They pooled their pens together and took them from the pool whenever they needed them. After the first month, they had taken a total of 37 pens from the pool. After the second month, they had taken another 41 pens from the pool. Then Jane decided to split the remaining pens equally among them. How many pens will each student get now?
[Answer]Each student got 62 + 43 = 105 pens to start with. They pooled them to get 105 * 3 = 315 pens in the pool. They took 37 pens in the first month, leaving 315 - 37 = 278 pens in the pool. They took 41 pens in the second month, leaving 278 - 41 = 237 pens in the pool. 237 pens were split into three equal parts to give 237 / 3 = 79 pens each. The answer is 79.

[Question]Lee is saving up for a new pair of sneakers which cost $90. He already has $15 saved. He plans to sell his old action figures to make the rest. If he sells 10 action figures and still has $25 left after buying the sneakers how much did he charge per action figure?
[Answer]
Before buying the shoes he had $115 dollars because 90 + 25 = 115. He earned $100 from selling action figures because 115 - 15 = 100. He sold them each for $10 because 100 / 10 = 10. The answer is 10.