Find f(-3) when f(x) = -x²+1

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?