Which function is a quadratic function? u(x) = –x 3x2 – 8 v(x) = 2x2 8x3 9x y(x) = x2 3x5 4 z(x) = 7x2 2x3 – 3

What percentage of the earth's water is available for use by living things?

Did the universe cool off or get hotter as it expanded after the 'big bang"?

Jasmine thinks that andrea is responsible for posting embarrassing pictures of her on the internet and sending them around the school. jasmine finds andrea before school and starts yelling at her about taking the pictures down. andrea pushes jasmine. what should jasmine do first?