I need help with this question, Please explain how you did it

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.

If np3 /nc2 = 6, find the value of n

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2