Sally Has Been Running the Following Number of Ads in the Local

question 40

Short Answer

Sally has been running the following number of ads in the local newspaper to help attract customers into her store. She has also been keeping track of customers who have come into the store as a result of the ads, as well as the amount of money they spend.
This is the data from the last 4 weeks:
$$\begin{array} { c c } \text { Number of ads } & \text { Increased sales } \\\hline 16 & 330 \\12 & 270 \\18 & 380 \\14 & 300 \\\hline\end{array}$$
-Determine the equation that relates ads and increased sales.

---

Definitions:

Actual Interest Rate

The actual rate of interest earned or paid on an investment or loan, considering compounding and other factors, as opposed to the nominal rate.

Non-Interest-Bearing Note

A type of debt instrument that does not pay interest to the holder, instead being issued at a discount to its redemption value.

Discount Rate

The interest rate used to discount future cash flows to their present value; often reflects the risk-free interest rate.

Discount Rate

The discount rate is the interest rate set by central banks charged to commercial banks for loans, affecting the cost of borrowing money.