Y=2x
y is the amount of money made from the sold books
x is the number of books that are sold (it is x because you don't know how many will be sold, so you have to account for all possibilities)
2x is because every book is sold for 2 dollars, so that mean x is multiplied by 2 to get y
Answer:

Step-by-step explanation:
we know that
The quadratic equation
is a vertical parabola
The axis of symmetry in a vertical parabola is a vertical line
The equation of the axis of symmetry in a vertical parabola is equal to the x-coordinate of the vertex
The x-coordinate of the vertex is equal to the formula

therefore
the equation of the axis of symmetry is equal to 
Answer:
neither
explanation:
they are vertical angles
Hello!
Explanation:
First, you had to add by the similar elements.

Answer:
Hope this helps!
-Charlie
Answer:
Step-by-step explanation:
- Probability of chocolate ice cream = 1/4
- Probability of chocolate chips = 1/3
- Probability of waffle cone = 1/2
Probability of chocolate ice cream in a waffle cone with chocolate chips:
- 1/4*1/3*1/2 = 1/24 or 4.17%