A farmer planted 30 rows of tomatoes with 10 plants in each row. Each tomato plant yields 20 pieces of tomatoes. How many pieces of tomatoes can the farmer get from all his planted tomatoes?
Let's think: The farmer planted a total of 30 x 10 = 300 tomato plants. Thus, the farmer can get 300 x 20 = 6000 pieces of tomatoes.. The answer is: 6000.

Albert noticed a flock of geese flying together in a V formation in the sky overhead. One half of the geese broke off from the formation, flew toward the earth, and landed in some trees. Then, 4 geese flew up, out of the trees, and joined those already flying in the air to make a new V formation in the sky. If the final number of geese flying in the V formation was 12, how many geese were in the first formation Albert noticed in the sky?
Let's think: If the final number of geese was 12, which included the 4 that joined from the trees, then before these 4 joined, there were 12 - 4 = 8 geese in the sky. Since these 8 geese represent the half of geese remaining, then the initial formation contained 8 * 2 = 16 geese.. The answer is: 16.

Kim orders a $10 meal and a drink for 2.5. She gives a 20% tip. She pays with a $20 bill. How much does she get in change?
Let's think: The dinner cost 10 + 2.5 = $12.5. The tip comes to 12.5 * .2 = $2.5. So the total cost is 12.5 + 2.5 = $15. That means she gets 20 - 15 = $5 in change.. The answer is: 5.

Lyka wants to buy a smartphone worth $160 but she only has $40 at the moment. She plans to save an equal amount of money per week for two months for the remaining amount that she needs. How much should she save per week?
Let's think:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Lyka has to save a total of $160 - $40 = $120 for two months. There are 2 x 4 = 8 weeks in two months. Hence, Lyka needs to save $120 / 8 = $15 per week.. The answer is: 15.