Answer: The second one which is x > 15
Answer: the answer is c
Step-by-step explanation: reflection across the x-axis
(180 miles=7.5 hours, 20 miles=2.5/3=0.8333) 7.5+0.8333=8.3333 or 8h and 20 minutes.
Step-by-step explanation:
i think it means that when negative tow crosses the equal sign, as in a calculation,it becomes positive
eg. -2 +z=0
z =2