3pm to 7pm is 4 hours. 4 hours times 2 degrees dropped every hour is 8 degrees total dropped within those 4 hours. The previous temperature of 4 degrees at 3pm minus the 8 degres dropped is -4.
Answer is D.
Answer: The zero will be at 2 when the line hit the x-axis
Step-by-step explanation:
Caculate
Answer: The expression is 7/2.
Answer:
C.
Step-by-step explanation:

Answer:
because a positive is over zero and a negative is below zero so from that you can tell that the opposite of any positive will be a negative.
Step-by-step explanation: