1. Subtract the cost from the selling price: 9.55 - 5.55 = 4.00
2. Divide the difference by the cost: \frac{4.00}{5.55} \approx 0.7207
3. Multiply by 100 to get the percentage: 0.7207 \times 100 \% \approx 72.07 \%
Answer: 72.07 \%
Frequently asked questions (FAQs)
Math Question: What is the smallest possible whole number exponent in Fermat's Theorem that can satisfy a + b = c, given that a, b, and c are prime numbers?
+
Math Question: Find the 4th derivative of f(x) = (3x^2 + 5x - 2)^6 - (7x^3 + 2x + 1)^4.
+
What is the maximum value of the sine function f(x) = sin(x)?