Answer:
the third one/second one
Step-by-step explanation:
Male steps: 55,375
Female steps:62,926
For this case, the first thing we must do is define variables.
We have then:
x: number of pens
y: number of pencils
We now write the system of inequations:

The solution to the system of inequations is given by the shaded region.
Note: see attached image.
The function f(x) = -5x^2+ 3x + 4 has a maximum.