A fair spinner has 9 equal sections: 2 red, 3 blue and 4 green. it is spun twice. what is the probability of getting blue both times?​ its urgent!!

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.