Maggie can buy 3 gifts
Solution:
Total budget $19
Each gift costs $4
Shipping fee $7
a. Total budget — Shipping fee = $19 - $7 = $12
Maggie’s got $12 more
Each gift costs $4
Number of gifts that Maggie can buy = 
=3
b. Let x represent the number of gifts.
19 = 7 +4x
Subtract -7 from both sides
19 - 7= 7 + 4x - 7
Now Simplify,
12 = 4x
Divide both sides by 4
x = 3
The answer is 15. Hope this helps!
Answer:
all firms produce and sell a standardized or undifferentiated product
Explanation:
A perfectly competitive market is a market in which there are many companies that offer the same product, there are not entry barriers which makes it easy for an organization to enter or exit the market. Also, the companies are not able to influence the market and they are not able to control the conditions in it. According to this, the answer is that in a perfectly competitive market, all firms produce and sell a standardized or undifferentiated product.
