At the arcade, one of the games gives you the chance to win one of 4 colored yo-yo's. There are 15 red, 20 blue, 5 green, and 10 purple. What is the likelihood of winning a blue yo-yo? Express your answer as a decimal.

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

30 in the diagram line e and made parallel to each other and line p and q are transversal. use properties of special angles formed by parallel lines and their transversals to find the missing angle measures. m< 3=65 m< 15=120 m< 7= m< 4= m< 6= m< 1= m< 16= m< 18= m< 21= m< 10= m< 11= m< 12=

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23