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Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?