a piece of machinery valued at $25,000 depreciates at a steady rate of 10% yearly what will the value of the piece of machinery be after 7 years​

If you answer 2+2 you will get over 80 points

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}

Use sigma notation to represent the following series for 9 terms.