12 a box contains 5 blue balls, 3 black balls and 2
red bals of the same size. a ball is selected at
random from the box and then replaced. a second
ball is then selected find the probability of
obtaining (a) two red balls. (b) two blue balls or
w black basic) one black ball and one red
palany order

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1