Three toy reindeer and two boxes of cookies cost $13.00.two toy reindeer and two boxes of cookies cost $10.00. what is the unit cost of each?

The unit cost of one toy reindeer is $3 and the unit cost of one box of cookies  is $2

Step-by-step explanation:

Let

x ----> the unit cost of one toy reindeer

y ----> the unit cost of one box of cookies

we know that

----> equation A

----> equation B

Solve the system by graphing

The solution is the intersection point both graphs

using a graphing tool

The solution is the point (3,2)

see the attached figure

therefore

The unit cost of one toy reindeer is $3 and the unit cost of one box of cookies  is $2

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )