47=20+(2x+y)
Let x represent the African stamps and y represent the Asian stamps.
Answer:
The jacket costs $45
Step-by-step explanation:
In order to find this, notice that the price of the sale represents 80% of the total cost. This is because we took 20% away with the sale. Now we can find the overall amount by dividing the sale cost by the amount it represents.
$36 / 80% = $45
You multiply it together like (a+b)(a+b)
the answer would be a^2 + 2ab + b^2
