Find an expression equivalent to the one shown below.

(8^2)^4 / 8^19

a. 1/8^27

b. 8^27

c. 1/8^11

d. 8^11

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.