You are holding a fundraiser for cancer research. A certain charity organization has agreed to contribute $\$10$ more than the amount of money you raise to cancer research. In the graph and table below, $f$ is the amount of money that you raise during your fundraiser, and $c$ is the amount of money that the charity organization donates. **Which of the following statements are true?** [[☃ radio 1]] $f$ | $c$ :-:|:-: $10$ | $20$ $20$ | $30$ $30$ | $40$ $40$ | $50$