Data:
Humans (x) = 2 Legs
Horses (y) = 4 Legs
74 Heads
196 Legs
Solving:
Addition method

Simplify by (-4) The first equation







Now, to find the number of horses, I will use the following equation and I will replace the found value, we will have:


Number with incognito are to the left of the equality and numbers without incognito are to the right, remembering that when changing of side changes the signal.


Answer:
Humans = 50Horses = 24
They will have the same Perimeter, unless you shrink or grow the image then nothing with change
For A B and C, you just plug in the given number
A

B

C

And for D, you set the equation to 26 and solve for n

I had to use x instead of n, but for D n=7. :)
The linear function that models the total cost for x deliveries is:

-------------------
A linear function has the following format:

In which
- m is the slope, that is, the rate of change.
- b is the y-intercept, that is, the value of y when x = 0.
In this problem:
- Fixed cost of $9 per month,
. - Cost of $2 for each delivery, thus
.
The function for the <u>total cost for x deliveries is:</u>

A similar problem is given at brainly.com/question/16270359