robyn saves $204 and spends $32.50 on books. she wants to purchase more books from a sale where they cost…

robyn saves $204 and spends $32.50 on books. she wants to purchase more books from a sale where they cost $8.15 each.\nwhich answer gives the best estimate for the number of books robyn can buy?\n○ 21\n○ 192\n○ 200\n○ 8
Answer
Explanation:
Step1: Calculate remaining money
$$204 - $32.50 = $171.50$
Step2: Estimate number of books
$\frac{$171.50}{$8.15} \approx 21$
Answer:
21