On a road trip, Yousef drove the same distance everyday for 8 days. On the ninth day, he drove 100 km. He drove a total of
1,700 km. How many kilometers did he drive on each of the first 8 days? And this is the choices x/8 +100=1700. 100x+8=1700. 8x+100=1700. 8x-100=1700