Let g represent the total number of hours Greg will travel on his trip across the country to attend his cousins wedding. The fir
st day he travels 8 hours. The second day he travels 9 hours. The third day he had mechanical problems and only drove 4 hours. Write and algebraic expression to represent how much time he has left to drive.
First you would want to add all of the hours traveled already. Since g would be the total amount of house that Greg would need to drive to get to his destination you would subtract the amount of hours traveled from g. 8+9+4=21, 21 hours traveled already. The expression would be g-21.
