The discounted price is going to be 60% of the original price because 100 - 40 = 60. So we want to find 60% of the original price, or 65. 65 x . 6 = 39, so the pair of rollerskates will be $39 at the discounted price.
The altitude of the kite: h = 5 + 250 · sin 45° h = 5 + 250 · √2 / 2 h = 5 + 250 · 0.7071 = 5 + 176.77 = 181.77 ≈ 182 ft Answer: The altitude is 183 ft.
