Decide whether the equation is true for all, one, or no values of x. 6x − 4 = -4 + 6x

Mary spent a total of $323.14 for a party. she spent a total of $200.22 on food, plus an additional $30.73 for each hour of the party. how long was the party?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.