Algebra-2

Question Analysis
This question tests the student's ability to create and evaluate a function based on a real-world scenario. The function represents the total cost for cakes, with a flat rate and an additional charge per cake.

Key Concept Explanation
Creating and evaluating a function involves understanding the relationship between the input (number of cakes) and the output (total cost), and then substituting the input value into the function expression.

Step-by-step Solution
1. Determine the function expression: .
2. Simplify the expression: .
3. Further simplify: