What is the value of x in the equation 3/4(1/4x + 8) - (1/2x+2) = 3/8(4-x)-1/4x ?

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Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?