Answer:
Step-by-step explanation:
You start with creating let statements.
Let x = the cost of each pencil.
Let y = the cost of each eraser.
Let z= the cost of each pen.
Then, you’d fill in information from the problem.
3x + 4y = 65
2z + y = 35
Now, you’d solve like a system of equations; meaning you can do elimination or substitution.
0.8
7 1/5 - 6 2/5 = 0.8
y=-5x+17
1/2
Anything with an exponent of 1 is itself.
Very nice to see someone ambitious. You need to answer thouroghly in order to get brainliest. Explain every step, as tiring as it may seem.
Have a good day!