Jessie's community built a new hedge. Each section of the hedge used 30 pieces of concrete blocks that cost $2 per piece. The hedge has eight sections. How much did they spend on the concrete blocks? Give the rationale and then the answer.
Let's think step by step. They used 30 x 8 = 240 concrete blocks for the eight sections. So, they spent 240 x $2 = $480 on the concrete blocks.. The answer is: 480.

Marissa's sunflower is 21 inches taller than her little sister. If her sister is 4 feet 3 inches tall, how tall is Marissa's sunflower in feet? Give the rationale and then the answer.
Let's think step by step. Since 1 foot is equal to 12 inches, then 4 feet is equal to 4 x 12 = 48 inches. So, Marissa's sister is 48 + 3 = 51 inches tall. The sunflower is 51 + 21 = 72 inches tall. Therefore, the sunflower is 72 / 12 = 6 feet tall.. The answer is: 6.

Wilfred eats 4 carrots on Tuesday and 6 carrots on Wednesday. If Wilfred wants to eat a total of 15 carrots from Tuesday to Thursday, how many carrots does Wilfred need to eat on Thursday? Give the rationale and then the answer.

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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Let's think step by step. Across Tuesday and Wednesday, Wilfred eats 4 + 6 = 10 carrots. On Thursday, Wilfred needs to eat 15 - 10 = 5 carrots.. The answer is: 5.