Your answer will be 125 x^6 y^12 z^3
It is quite simple actually since it is simple division with the negative rules.
Just simplify the problem and use the negatives to determine if it is positive or negative. (two negatives equal a positive and one negative equals a negative)
Multiplying the number by 1,000
Slope intercept form: y = 3/4 x - 7
Point slope form: y + 7 = 3/4 (x+0)