Help Please Answer Both (Geometry)

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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.

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?