So firstly, let's figure out the expression for a singular goody bag. Since there's 2 of each item, a single goody bag is going to be 
Now since we have 7 friends who are all getting 1 goody bag, multiply the cost of the goody bag by 7, and our expression is
. Now we can solve it from there.
Firstly, solve the multiplication inside the parentheses: 
Now add up what's inside the parentheses: 
Lastly, multiply and <u>your answer will be $56.56</u>
Answer:
The solution is (0, 3)
Step-by-step explanation:
First, reduce 2x + 4y = 12 to x + 2y = 6, for easier calculations.
Next, substitute y - 3 for x in the other equation:
y - 3 + 2y = 6, or
3y = 9
Then y = 3. Since x = y - 3 in general, x = 3 - 3 = 0 when y = 3.
The solution is (0, 3)