Question

# Advertising and sales Suppose that a company's daily sales volume attributed to an advertising campaign is given by Sales volume $=1+\frac{3}{t+3}-\frac{18}{(t+3)^2}$ where $t$ is the number of days since the campaign started. Express the sales volume as a single fraction.

Solution

Verified
\begin{align*} \text{Sales Volume } &= 1 + \frac {3} {t + 3} - \frac {18} {(t + 3) ^ 2} \\ \end{align*}