You have 15 marbles in your pocket. 5 are blue, 6 are red, and 4 are green. You reach into your pocket. What is the probability that the marble will be red? *Write your answer as a fraction in SIMPLEST form.

Ineed to know the answer to this algebra question.

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days