5r-4 and r=-5 so it would be 5(-5)=-20, then -4 , so is is -24
Exact form: 9/20 and decimal form: 0.45
Answer: A. <em>Representative, since blood types are probably not different among students at the cafeteria compared to the U.S. population</em>, B. <em>Not representative, since students in the cafeteria may eat most of their meals at the cafeteria instead of eating fast food</em>
Step-by-step explanation:
I Hope that this helps! :)
