A bag contains 4 red marbles, 6 blue marbles and 10 yellow marbles. If you reach in the bag and randomly pull out one marble, what is the probability you draw a yellow or blue marble?
a) 0.4
b) 0.5
c) 0.8
d) 0.6

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f