Well, if y is the notebook cost, well x+y=6.28, x+x+0.70=6.28, 2x=5.58, x=2.79.
The pencil box costs $2.79, while the notebook costs $3.49.
Answer:
A
Step-by-step explanation:
Hopefully this helps
Answer: A- x - 0.20x = 0.8x
Step-by-step explanation:
The vertex of the graph is (2,-4). It is a minimum as it is the lowest point on the parabola facing upwards. This would be option C.
Here is the formula: b•h/2
