Rudy placed 12 red marbles, 11 green marbles, 8 white marbles, 9 marbles of other color, into a bag. He plans to draw a marble from the bag, record its color, then place the marble back into the bag before drawing again. If he does this 50 times, How many times should he expect to draw a marble that is red? Please help! :( I've been trying to slave this all day. This is my last resort.

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

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.

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf