The total cost of four pens and seven mechanical pencils is $13.25. The cost of each pencil is 75 cents.

Pens cost $2/each

Step-by-step explanation:

We can produce an equation from this question, it is as follows:

P = The cost of pens

M = The cost of mechanical pencils

In the question it is stated that each mechanical pencil is 75 cents. We can plug that into the equation like this:

Now, we just solve the equation:

Therefore, each pen costs $2.

Let's check this answer by plugging everything into the equation:

I hope this helps!

If you have any questions feel free to ask!

- Kay :)

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation:

step-by-step explanation: