Rational Equations Problem: Abby alone requires 6 hours to map the area, Brian takes 8 hours, and Charles only 4 hours. how long would it take for the 3 to do the mapping

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Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

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?