d. Among those surveyed, 1776 were called by landline and 1363 were called by cell phone. What percentage of the survey subjects were called by cell phonecell phone?

ANSWER
[tex]42.9[/tex]EXPLANATION
Given;
The number of people called by landline is; 1776
The number of people called by cell phone is; 1463
Hence, the total number surveyed is;
[tex]1776+1337=3116[/tex]The percentage of those surveyed through cell phone is;
[tex]\begin{gathered} \frac{n(cellphone)}{Total}\times100 \\ =\frac{1337}{3116}\times100 \\ =0.4290\times100 \\ =42.91 \end{gathered}[/tex]