Something that will help you to know is the next formula:
<span>P(having studies given that they passed) = P(studied and pass) / P(passed)
= 0.45/ 0.5 = 0.9
</span>
With that in mind, now you can have the answer with this formula. Hope this helps
8.2 the decimal is 8.124 but you just round
Let x = the number of penguins we are finding
x ÷ 100 × 30 = 15
x = 15 ÷ 30 × 100
x = 50
hope this helps and have a great day :)
Answer: Im pretty sure its a bar graph.
Step-by-step explanation: