Can somebody help with this

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 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.