Final answer:
The average amount spent on ice cream by the three students is approximately $4.88, which is closest to option D) $5.21.
Step-by-step explanation:
To solve the word problem about the average amount spent on ice cream by three students at the ice cream shop, we need to add the amounts spent by all three students and then divide by the number of students to find the average. The first student spent $4.53, the second student spent $6.11, and the third student spent $4.00.
To calculate the average we perform the following addition and division:
($4.53 + $6.11 + $4.00) ÷ 3 = $14.64 ÷ 3 = $4.88 (approximately).
Since we calculated an approximate value necessary to match one of the options, the closest to $4.88 is option D) $5.21, so this is the correct answer.