I don’t know how to divide a fraction by a fraction

1. are the triangles similar and if so why? what is the value of x? show your work.

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

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