Questions: Among all deaths from a disease, the percentage that are smoking-related is a function of the disease's incidence ratio, the number of times more likely smokers are than nonsmokers to die from the disease. The table to the right shows incidence ratios for a particular group. The rational function P(x) models the percentage of smoking-related deaths among all deaths from a disease, P(x), in terms of the disease's incidence ratio, x. The graph of P(x) is shown to the right. Age Incidence Ratios Heart Disease Lung Cancer ------------------------------------------------ 55-64 1.9 65-74 1.7 8 Find P(7). P(7)= (Round to the nearest integer as needed.)

Transcript text: Among all deaths from a disease, the percentage that are smoking-related is a function of the disease's incidence ratio, the number of times more likely smokers are than nonsmokers to die from the disease. The table to the right shows incidence ratios for a particular group. The rational function $\mathrm{P}(\mathrm{x})$ models the percentage of smoking-related deaths among all deaths from a disease, $\mathrm{P}(\mathrm{x})$, in terms of the disease's incidence ratio, x . The graph of $\mathrm{P}(\mathrm{x})$ is shown to the right. \begin{tabular}{|l|c|c|} \hline Age & \multicolumn{2}{|c|}{\begin{tabular}{c} Incidence Ratios \\ Heart \\ Disease \end{tabular}} \\ \hline $55-64$ & 1.9 & \begin{tabular}{c} Lung \\ Cancer \end{tabular} \\ \hline $65-74$ & 1.7 & 8 \\ \hline \end{tabular} Find $\mathrm{P}(7)$. \[ P(7)= \] $\square$ (Round to the nearest integer as needed.)