The question requires finding the amount of money the lady paid at the store.
The amount of money the lady paid at the store is 0.4x + y + 4z
You didn't include the prices of the dresses
Number of skirts bought = 2
let price of each skirt = x
amount paid for the skirts = 20% × 2x skirts
= 0.2 × 2x
= 0.4x of the prices of both skirts
number of dress bought = 1
amount paid for the dress = y
number of pantyhose bought = 4
amount paid for the pantyhose = 4z
Total amount paid at the store = amount paid for the skirts + amount paid for the dress + amount paid for the pantyhose
= 0.4x + y + 4z
Therefore, the amount of money the lady paid at the store is 0.4x + y + 4z
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