Simplify the polynomial: 2x^2+8-4x+3x-6x^2+7
(if anyone has the unit 6 lesson seven unit test for math could you comment the correct answers in the comment section below ? )

Which one ? is the answer and how to find this answer

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?