20,000 people voted in each county, and there are 7 counties. what is the order of magnitude for the total number of people who voted?

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}

Write the equation in general quadratic form: plz !

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?