1. **State the problem:** Calculate the total cost for Yaa who buys 2 skirts, 1 dress, and 4 pairs of pantyhose during a 20% off sale on skirts. 2. **List the prices:** - Skirt: Ghc14 each normally, but the problem states Ghc16 each, so we use Ghc16. - Dress: Ghc25 each. - Pantyhose: 2 pairs for Ghc3. 3. **Calculate the discounted price for skirts:** The discount is 20%, so the price after discount is: $$16 - 0.20 \times 16 = 16 - 3.2 = 12.8$$ 4. **Calculate the total cost for skirts:** Yaa buys 2 skirts, so: $$2 \times 12.8 = 25.6$$ 5. **Calculate the total cost for the dress:** Yaa buys 1 dress, so: $$1 \times 25 = 25$$ 6. **Calculate the total cost for pantyhose:** Pantyhose are sold 2 pairs for Ghc3. Yaa buys 4 pairs, which is 2 sets of 2 pairs: $$2 \times 3 = 6$$ 7. **Calculate the total amount to pay:** Add the costs: $$25.6 + 25 + 6 = 56.6$$ **Final answer:** Yaa has to pay Ghc56.6.