Answer:
C
Step-by-step explanation:
The distance around the circle is asking for the circumference of the circle.
Since we know that the diameter is 21 and the equation for the circumference of a circle is 2*pi*r and since 2*r is just the diameter, we can say that the circumference is 21*pi, which would be C.
Step-by-step explanation:
The formula for the slope is <em>y=mx+b</em>, where <em>m</em> is the slope and <em>b</em> is the y-intercept. Since 2 is being multiplied by <em>x</em>, that means it is the slope. The variable <em>y</em> is being added, so it has to be the y-intercept.
Answer:
2=slope & y-intercept=y
Answer:
y is 30
Step-by-step explanation:
X, y, z denote children's movies, western movies, and horror movies, respectively. The related system of equations is formed and solved.

Simplifying the system of equations, we have



The video store has 500 children's movies, 600 westerns and 900 horror movies.