Geometry

When Ms Shreve randomly selects a student in her class, she has 1/3 probability of selecting a boy.
A: If her class has 36 students, how many boys are in her class?
B: if there are 11 boys in her class, how many girls are in her class?
C: what is the probability that she will select a girl??
I have a general idea on this but I don't know if it's right.

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  1. Anyone?

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  2. A. 1/3 * 36 = 12 Boys.
    B. 36 - 11 = 25 Girls.
    C. p = 25/36 =

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  3. On graph paper, draw line segment AB if A (6, 2) and B (3, 5). 2-36 HW eTool (Desmos) Homework Help ✎. Click in the lower right corner of the graph to view it in full-screen mode. Desmos Accessibility
    Reflect AB across the line x = 3 and connect points A and A′. What shape is created by this reflection? Be as specific as possible.

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  4. On graph paper, use a table to make a complete graph of y = x2 − 2x − 8.
    a)Write the coordinates of the y-intercept. What is the connection between the y‑intercept and the equation y = x2 − 2x − 8?

    b)Write the coordinates of the x-intercepts.

    c)What is the lowest point on the graph?

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