Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Number of half-life periods:</u>
<u>Equation for remaining sample:</u>
25.50
-5 notebooks $2 each
-4 pencils $1.50 each
-2 packs of markers $3.75 each
5(2)+4(1.50)+2(3.75)
$23.5
23.5 times 8.5/100
1.9975
plus 23.5
25.4975
rounded to 25.50