A bag contains 15 bottles. In which 5 are pink,6 are black, and 4 are red. One bottle is chosen at random from the bag, what is the probability that it is not pink?

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1