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(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 is the rotational symmetry of a wheel

3x + 4y = 5 x- 3y = -7 solve by substitution