Answer:
the answer to the question is -1
Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.
Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.
For this case, the first thing we must observe is that the base of the prism is a triangle.
The area of the triangle is given by:

Where,
b: base of the triangle
h: height of the triangle
Substituting values we have:
Answer:
The area of the base of the triangular prism could be:
Answer:
14 red marbles.
Step-by-step explanation:
If I am reading this correctly, since the probablitly of choosing a blue marble is 7/9, then 7/9 of the bag must be blue marbles. That amounts to 7/9*63=49 and the bag containing 49 blue marbles. Therefor, 63-49=14 is the number of red marbles in the mag.