B. seven minutes - because that is when the slope of the line is flat, which means he isn't moving.
8*.8=6.4
4x+6.4=40
40-6.4=33.6
33.6/4=x
8.4=x
Hope this helps :)
B ,it’s being divided because anytime u see a variable with a right beside it like that you know to divide.
It would be 5✔️27 but i’m not sure what the name of that root actually is
