Answer:
B! 
Step-by-step explanation:
Because 10 minus 5 (from the y column) is -5. And -5 - (-2) is +3. So you get -5 over 3 (
). which is B!
Can you give me brainliest please?? :)
i am going to answer question 1, so q1 is a number line
The half-life of the radioactive substance is 67.95 hours.