Answer:
Cost of one pencil: 
Cost of one eraser: 
Step-by-step explanation:
Let be "p" the cost in dollars of one pencil and "e" the cost in dollars of one eraser.
Based on the information given in the exercise, you can set up the following system of equations:

You can use the Elimination Method to solve the system of equations.
Multiply the first equation by -3 ad the second one by 4. Then add the equations and solve for "e":
{
Substitute the value of "e" into any original equation and solve for "p":

Since BAF is opposite of DAE, they are equal to each other.
134 - 89 = 45
The correct answer is 45
Answer:
261.1
Step-by-step explanation:
Wizardry
A) Puppies to Kittens.
This is because if you divide 15 and 12 by the lowest, you get 5:2 (=:
Answer:
incenter
Step-by-step explanation:
The point of intersection of the three angle bisectors of a triangle is the incenter.