28 songs to 49 songs what is the percent

Which graph shows a function with a range of all real numbers greater than or equal to -1

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.

Which best explains why this triangle is or is not a right triangle ?