A box is filled with 7 green cards, 2 brown cards, and 5 blue cards. A card is chosen at random from the box. What is the probability that it is a green or a blue card?
Write your answer as a fraction in simplest form.

Need on this one asap im almost done with this subject

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2