Trapezoid abcd is rotated 180 degrees about the origin and then reflected over the x-axis, followed by a reflection over the y-axis. what is the location of point a after the transformations are complete?

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.