Happy Cattle Ranch is home to 200 cows. Every year, the mother cows have enough calves that the number of cows the rancher owns rises by half the number of cows living on the ranch. If the rancher does not buy or sell any cows, how many cows will the rancher own on Happy Cattle Ranch in two years?
Let's think: In one year, the rancher will have 200 + 200 / 2 = 200 + 100 = 300 cows. In two years, the rancher will have 300 + 300 / 2 = 300 + 150 = 450 cows.. The answer is: 450.

Beth went shopping. She bought 15 more cans of peas than twice the number of cans of corn that she bought. If she bought 35 cans of peas, how many cans of corn did she buy?
Let's think: Let the number of cans of corn she bought be a. Twice the number of corn cans is 2 * a = 2a. The 35 cans of peas were 15 more than twice the number of corn cans which means 15 + 2a = 35. Solving the equation: 2a = 20. a = 20 / 2 = 10 cans of corn.. The answer is: 10.

Alex was having a cookout Friday night and planned to serve burgers to his guests. He planned to cook 3 burgers for each guest and had invited 10 friends over. 1 of his friends didn't eat meat and said they would bring their own food. Another one of his friends didn't eat bread and would not need the buns. The burger buns came 8 to a pack. How many packs of buns did Alex need to buy?
Let's think: He invited 10 friends but he didn't need to cook for 1 of his friends so that left 10 - 1 = 9 friends to cook for. He was cooking 3 burgers per 9 guests so 3 * 9 = 27 burgers. He needed 27 burger buns but 1 guest wouldn't eat the buns so now he needs 27 - 3 = 24. He will need to buy 24 buns and they come 8 to a pack so he needs 24 / 8 = 3 packs of buns.. The answer is: 3.

Madison makes 30 paper boats and sets them afloat. 20% are eaten by fish and Madison shoots two of the others with flaming arrows. How many boats are left?
Let's think:
First find the number of boats eaten by fish: 30 boats * 20% = 6 boats. Then subtract the two groups of boats that were destroyed from the original number to find the number left: 30 boats - 6 boats - 2 boats = 22 boats.. The answer is: 22.