Given:
Number of rows: [tex]f(x)=13x[/tex]
Number of columns: [tex]g(x)=5x-2[/tex]
To find:
The total number of seats.
Solution:
We need multiply the number of rows and number of columns, to find the total number of seats in a wedding.
Let the function h(x) represents the total number of seats. Then,
[tex]h(x)=f(x)\times g(x)[/tex]
[tex]h(x)=13x\times (5x-2)[/tex]
[tex]h(x)=13x(5x)+13x(-2)[/tex]
[tex]h(x)=65x^2-26x[/tex]
Therefore, the required function for total number of seats is [tex]h(x)=65x^2-26x[/tex].