The rate of a linear function is simply the slope of the function.
The true statement is (b) the rate that Tim sells raffle tickets is double the rate that Sheri sells raffle tickets.
Tim's equation is given as:
[tex]t = 14h[/tex]
A proportional linear equation is represented as:
[tex]t = mh[/tex]
Where m represents the slope/rate.
This means that:
[tex]m = 14[/tex] --- Tim's rate
The slope of Sheri's table is calculated using:
[tex]m = \frac{y_2-y_1}{x_2 - x_1}[/tex]
So, we have:
[tex]m = \frac{28 -14}{12 -10}[/tex]
[tex]m = \frac{14}{2}[/tex]
[tex]m = 7[/tex] ---- Sheri's rate
By comparison:
[tex]14 = 7 \times 2[/tex]
This means that: Tim's rate doubles Sheri's rate.
Hence, the true statement is (b)
Read more about rates and slopes at:
https://brainly.com/question/3493733