A spinner with 12 equally sized slices has 5 yellow slices, 3 red slices, and 4 blue slices. The dial is spun and stops on a slice at random. What is the probably that the dial stops on a yellow or red slice?
Write your answer as a fraction in simplesta form

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

the answer is 6

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