4 more toy boats are in each group than toy cars
10^7 is the correct answer
15 + 20 equals to 35, 60 - 35 equals to 25 so so his total journey is 1 hour
Answer:
If the line goes through the origin, (0,0), that means the linear equation is proportional, if it doesn't go through the origin, the equation isn't proportional.
You can also tell if a linear equation is proportional if the equation has an constant after the x (for example y=2x+6)