What is the surface area of this triangular pyramid?
Quickly PLEASE!!

The system of equations graphed below has how many solutions? y = 2x + 2

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2