Write a function rule to describe each situation

The sellings price s(c) after a 45% markup of an item as a functiom of the stores cost c.

s(c)=c+(45/100)c

To describe the situation, we can use the following function rule:

s(c) = c + 0.45c

In this function, "c" represents the store's cost, and "0.45c" represents a 45% markup of the cost. By adding the cost and the markup, we get the selling price "s(c)".

To describe the situation where the selling price is calculated after a 45% markup of an item, we can define a function rule. Here's how you can do it:

1. Start with the cost of the item, which is represented by the variable c.
2. Calculate the markup amount by multiplying the cost (c) by the markup percentage (45% or 0.45). This gives you the markup value: markup = c * 0.45.
3. Add the markup value to the cost to get the selling price. The selling price (s) is the sum of the cost (c) and the markup (markup): s = c + markup.

In summary, the function rule to describe the situation is:

s(c) = c + (c * 0.45)

This function takes the cost of the item (c) as an input and returns the selling price (s) after applying a 45% markup.