Which of these expressions is equivalent to (x^2 y^3)^-2(y^2 z^3)^3?

a. z^9 y/x^4

b. z^9/x^4 y^36

c. y^6 z^6

d. z^9/x^4

How do the graphs of y = 1/x and y=5/x+6 compare?

Agraphic designer created a logo on eight and a half by 11 inch paper. in order to be placed on a business card, the logo needs to be one and 7/10 inches by 2 and 1/5 in. what is the scale factor of the dilation

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.