I’m pretty sure it’s 20 could be wrong
The answer is ^3 I hope this helps
I think it's the answer C, because in the second and third pairs, the -2 are the same.
Answer:
7 and 8: these are both proportional relationships because they grow at a constant rate of change
9: for every 40 miles that the car travels, it uses 2 gallons of gas.
10: y= 20x
11: the graph would be steeper and have a greater rate of change. This car would be able to go farther on less fuel.
Angle 1 and 2=105°
75+Angle 2=180°
180-75=105=Angle 2
Angle 2=Angle 1