4s - (s - 12) = 1- (1 - 6s)?

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

What are the soultion(s) to the quadratic equation 40- x^2=0

Is a square always, sometimes, or never a parallelogram