A and D
To get x on one side you have to, in this case, add 3 to both sides. This is the addition property of equality
Answer: 
Step-by-step explanation:
Given
Speed of boat 
Rise over run. as time increases the temperature rises. starting at 8am and -2°f.
At 12pm the temperature rose to 4°f.
that's a difference of 4 hours and 6 degrees. for every hour, it rose 1.5 degrees. the slope is 1.5/1
