Answer:
A
Step-by-step explanation:
Step-by-step explanation:

Hence according to ,

So,


Answer:
a
Step-by-step explanation:
the sign flips when you divide or multiply one
Answer:
the difference between the highest and lowest values in a set of numbers.
Step-by-step explanation:
Base on the question, which ask to state the graph that represents the calories that Jenny burns, in my own understanding, the graph should have two variables which is the time and his activity in each time and also the calories that burn every time. I hope you are satisfied with my answer and feel free to ask for more