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The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Empty box + box + empty box fill in the box is equal to 30 how