Select the inequality that represents the relationship described below. The sum of three times a number and seven is greater than four times the number.
O A.
3 + 7 x > 4x
OB.
3x + 7 > 4x
O C.
3-7x> 4x
OD.
3x-7> 4x Thing

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.