Answer: A
Step-by-step explanation: The question states that the change wasn't a positive one, it was a negative one as it states that the temperature changed an average of -2.250 Fahrenheit per hour. So, we multiply that by 3 to get -6.75. This is why A is correct.
Answer: less than
Step-by-step explanation:
Solutions: x=1<span>. Hope its right :)</span>
Answer: D
Step-by-step explanation:

15.50 for 6 lbs......15.50/6 = $ 2.58 per lb